diff --git a/src/app/election/components/candidate-board/candidate-board.component.html b/src/app/election/components/candidate-board/candidate-board.component.html
index 88d4a6142..5c7f11907 100644
--- a/src/app/election/components/candidate-board/candidate-board.component.html
+++ b/src/app/election/components/candidate-board/candidate-board.component.html
@@ -101,13 +101,18 @@
                 } @else {
                   <span class="no-symbol-text">No symbol</span>
                 }
-                <label class="btn-symbol-upload" [class.uploading]="symbolUploading[candidate.id]">
+                <label
+                  class="btn-symbol-upload"
+                  [class.uploading]="symbolUploading[candidate.id]"
+                  [class.btn-locked]="!canModifyCandidates"
+                >
                   <mat-icon>{{ symbolUploading[candidate.id] ? 'hourglass_top' : 'upload' }}</mat-icon>
                   {{ candidate.hasSymbol ? 'Change' : 'Upload' }}
                   <input
                     type="file"
                     accept="image/*"
                     style="display: none"
+                    [disabled]="!canModifyCandidates"
                     (change)="onSymbolFileChange(candidate, $event)"
                   />
                 </label>
@@ -119,10 +124,12 @@
                 </a>
                 @if (!candidate.isActive) {
                   <span class="removed-badge">Removed</span>
-                } @else {
+                } @else if (canModifyCandidates) {
                   <button class="btn-remove" (click)="removeCandidate(candidate)">
                     <mat-icon>person_remove</mat-icon> Remove
                   </button>
+                } @else {
+                  <span class="locked-badge"><mat-icon>lock</mat-icon> Locked</span>
                 }
               </div>
             </div>
@@ -235,19 +242,28 @@
               <span>No symbol yet</span>
             </div>
           }
-          <label class="btn-upload-symbol" [class.uploading]="symbolUploading[selectedCandidate.id]">
-            <mat-icon>{{ symbolUploading[selectedCandidate.id] ? 'hourglass_top' : 'upload_file' }}</mat-icon>
+          <label
+            class="btn-upload-symbol"
+            [class.uploading]="symbolUploading[selectedCandidate.id]"
+            [class.btn-locked]="!canModifyCandidates"
+          >
+            <mat-icon>{{
+              symbolUploading[selectedCandidate.id] ? 'hourglass_top' : !canModifyCandidates ? 'lock' : 'upload_file'
+            }}</mat-icon>
             {{
               symbolUploading[selectedCandidate.id]
                 ? 'Uploading...'
-                : selectedCandidate.hasSymbol
-                  ? 'Change Symbol'
-                  : 'Upload Symbol'
+                : !canModifyCandidates
+                  ? 'Symbol Locked'
+                  : selectedCandidate.hasSymbol
+                    ? 'Change Symbol'
+                    : 'Upload Symbol'
             }}
             <input
               type="file"
               accept="image/*"
               style="display: none"
+              [disabled]="!canModifyCandidates"
               (change)="onSymbolFileChange(selectedCandidate, $event)"
             />
           </label>
@@ -297,10 +313,15 @@
         </div>
       </div>
 
-      @if (selectedCandidate.isActive) {
+      @if (selectedCandidate.isActive && canModifyCandidates) {
         <button class="btn-remove-full" (click)="removeCandidate(selectedCandidate)">
           <mat-icon>person_remove</mat-icon> Remove Candidate
         </button>
+      } @else if (selectedCandidate.isActive && !canModifyCandidates) {
+        <div class="locked-notice">
+          <mat-icon>lock</mat-icon>
+          Candidate cannot be removed after voting has started
+        </div>
       }
     </div>
   </div>
diff --git a/src/app/election/components/candidate-board/candidate-board.component.scss b/src/app/election/components/candidate-board/candidate-board.component.scss
index 9c8c7db47..007620bf5 100644
--- a/src/app/election/components/candidate-board/candidate-board.component.scss
+++ b/src/app/election/components/candidate-board/candidate-board.component.scss
@@ -375,6 +375,31 @@
     border-radius: 6px;
     font-size: 11px;
   }
+
+  .locked-badge {
+    display: inline-flex;
+    align-items: center;
+    gap: 3px;
+    background: #fffbeb;
+    color: #92400e;
+    border: 1px solid #fde68a;
+    padding: 4px 10px;
+    border-radius: 6px;
+    font-size: 11px;
+    font-weight: 600;
+
+    mat-icon {
+      font-size: 12px;
+      height: 12px;
+      width: 12px;
+    }
+  }
+}
+
+.btn-locked {
+  opacity: 0.5;
+  pointer-events: none;
+  cursor: not-allowed !important;
 }
 
 // ── Candidate Detail Drawer ────────────────────────────────────
@@ -734,6 +759,28 @@
   }
 }
 
+.locked-notice {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  width: 100%;
+  margin-top: 8px;
+  padding: 10px 14px;
+  background: #fffbeb;
+  color: #92400e;
+  border: 1px solid #fde68a;
+  border-radius: 8px;
+  font-size: 13px;
+  font-weight: 500;
+
+  mat-icon {
+    font-size: 16px;
+    height: 16px;
+    width: 16px;
+    flex-shrink: 0;
+  }
+}
+
 .btn-remove-full {
   display: flex;
   align-items: center;
diff --git a/src/app/election/components/candidate-board/candidate-board.component.ts b/src/app/election/components/candidate-board/candidate-board.component.ts
index 98e34fde2..41b0ab44a 100644
--- a/src/app/election/components/candidate-board/candidate-board.component.ts
+++ b/src/app/election/components/candidate-board/candidate-board.component.ts
@@ -217,6 +217,16 @@ export class CandidateBoardComponent implements OnInit {
     return this.electionStatus === 'VOTING_OPEN' || this.electionStatus === 'VOTING_CLOSED';
   }
 
+  get canModifyCandidates(): boolean {
+    const locked = [
+      'VOTING_OPEN',
+      'VOTING_CLOSED',
+      'RESULT_DECLARED',
+      'CANCELLED'
+    ];
+    return !locked.includes(this.electionStatus);
+  }
+
   isNumber(p: number | string): boolean {
     return typeof p === 'number';
   }
diff --git a/src/app/election/components/director-board/director-board.component.html b/src/app/election/components/director-board/director-board.component.html
index 13b37a547..faea4e2a4 100644
--- a/src/app/election/components/director-board/director-board.component.html
+++ b/src/app/election/components/director-board/director-board.component.html
@@ -82,92 +82,141 @@
       </button>
     </div>
   } @else {
-    <!-- Director Cards Grid -->
-    <div class="directors-grid">
-      @for (d of directors; track d.id) {
-        <div class="director-card">
-          <div class="card-top">
-            <div class="director-avatar">{{ d.candidateName?.charAt(0) }}</div>
-            <div class="director-info">
-              <h4>{{ d.candidateName }}</h4>
-              <span class="post-badge">{{ d.postName }}</span>
-            </div>
-            <span
-              class="status-chip"
-              [style.background-color]="statusColor(d.status) + '20'"
-              [style.color]="statusColor(d.status)"
-            >
-              {{ d.status }}
-            </span>
+    <!-- Grouped by Election -->
+    @for (group of electionGroups; track group.electionId) {
+      <div class="election-group" [class.past-group]="!group.isCurrent">
+        <!-- Election Group Header (clickable) -->
+        <div
+          class="election-group-header"
+          [class.current-header]="group.isCurrent"
+          [class.header-open]="group.open"
+          (click)="group.open = !group.open"
+        >
+          <div class="election-group-icon" [class.past-icon]="!group.isCurrent">
+            <mat-icon>how_to_vote</mat-icon>
           </div>
-
-          <div class="card-field designation-field">
-            <mat-icon>badge</mat-icon>
-            <span>{{ d.designation || '—' }}</span>
-          </div>
-
-          <div class="tenure-row" [class.tenure-expired]="d.isExpired">
-            <div class="card-field">
-              <mat-icon>event_available</mat-icon>
-              <div>
-                <span class="field-label">Tenure Start</span>
-                <span class="field-val">{{ d.tenureStartDate ? (d.tenureStartDate | date: 'dd MMM yyyy') : '—' }}</span>
-              </div>
+          <div class="election-group-info">
+            <div class="election-title-row">
+              <h3>{{ group.electionTitle }}</h3>
+              @if (group.isCurrent) {
+                <span class="current-badge"><mat-icon>verified</mat-icon> Current</span>
+              } @else {
+                <span class="past-badge">Past</span>
+              }
             </div>
-            <div class="tenure-divider">→</div>
-            <div class="card-field">
-              <mat-icon>event_busy</mat-icon>
-              <div>
-                <span class="field-label">Tenure End</span>
-                <span class="field-val" [class.expired-date]="d.isExpired">
-                  {{ d.tenureEndDate ? (d.tenureEndDate | date: 'dd MMM yyyy') : '—' }}
-                  @if (d.isExpired) {
-                    <span class="expired-tag">Expired</span>
-                  }
-                </span>
-              </div>
-            </div>
-          </div>
-
-          <div class="meta-row">
-            @if (d.resolutionNo) {
-              <span class="meta-tag"><mat-icon>description</mat-icon>{{ d.resolutionNo }}</span>
-            }
-            @if (d.appointmentDate) {
-              <span class="meta-tag"
-                ><mat-icon>calendar_today</mat-icon>{{ d.appointmentDate | date: 'dd MMM yyyy' }}</span
-              >
+            @if (group.tenureStart || group.tenureEnd) {
+              <span class="election-tenure-range">
+                <mat-icon>date_range</mat-icon>
+                {{ group.tenureStart ? (group.tenureStart | date: 'dd MMM yyyy') : '—' }}
+                &nbsp;→&nbsp;
+                {{ group.tenureEnd ? (group.tenureEnd | date: 'dd MMM yyyy') : '—' }}
+              </span>
             }
           </div>
-
-          @if (d.remarks) {
-            <p class="remarks-text">{{ d.remarks }}</p>
-          }
-
-          <div class="card-actions">
-            <button class="btn-edit" (click)="openEdit(d)"><mat-icon>edit</mat-icon> Edit</button>
-            <button
-              class="btn-delete"
-              (click)="confirmRemove(d)"
-              [disabled]="deleting === d.id || d.status === 'REMOVED'"
-            >
-              <mat-icon>person_remove</mat-icon>
-              {{ deleting === d.id ? 'Removing...' : 'Remove' }}
-            </button>
-          </div>
+          <span class="election-member-count" [class.past-count]="!group.isCurrent">
+            {{ group.directors.length }} member{{ group.directors.length !== 1 ? 's' : '' }}
+          </span>
+          <mat-icon class="group-chevron" [class.chevron-open]="group.open">expand_more</mat-icon>
         </div>
-      }
-    </div>
 
-    @if (totalPages > 1) {
-      <div class="pagination">
-        <button class="page-btn" (click)="prevPage()" [disabled]="page === 0">
-          <mat-icon>chevron_left</mat-icon>
-        </button>
-        <span class="page-info">Page {{ page + 1 }} of {{ totalPages }} &nbsp;·&nbsp; {{ totalElements }} records</span>
-        <button class="page-btn" (click)="nextPage()" [disabled]="page >= totalPages - 1">
-          <mat-icon>chevron_right</mat-icon>
-        </button>
+        <!-- Director Cards -->
+        @if (group.open) {
+          <div class="directors-grid">
+            @for (d of group.showAll ? group.directors : group.directors.slice(0, 6); track d.id) {
+              <div class="director-card">
+                <div class="card-top">
+                  <div class="director-avatar">
+                    @if (getDirectorPhoto(d)) {
+                      <img [src]="getDirectorPhoto(d)" [alt]="d.candidateName" class="director-avatar-img" />
+                    } @else {
+                      {{ d.candidateName?.charAt(0) }}
+                    }
+                  </div>
+                  <div class="director-info">
+                    <h4>{{ d.candidateName }}</h4>
+                    <span class="post-badge">{{ d.postName }}</span>
+                  </div>
+                  <span
+                    class="status-chip"
+                    [style.background-color]="statusColor(d.status) + '20'"
+                    [style.color]="statusColor(d.status)"
+                  >
+                    {{ d.status }}
+                  </span>
+                </div>
+
+                <div class="card-field designation-field">
+                  <mat-icon>badge</mat-icon>
+                  <span>{{ d.designation || '—' }}</span>
+                </div>
+
+                <div class="tenure-row" [class.tenure-expired]="d.isExpired">
+                  <div class="card-field">
+                    <mat-icon>event_available</mat-icon>
+                    <div>
+                      <span class="field-label">Tenure Start</span>
+                      <span class="field-val">{{
+                        d.tenureStartDate ? (d.tenureStartDate | date: 'dd MMM yyyy') : '—'
+                      }}</span>
+                    </div>
+                  </div>
+                  <div class="tenure-divider">→</div>
+                  <div class="card-field">
+                    <mat-icon>event_busy</mat-icon>
+                    <div>
+                      <span class="field-label">Tenure End</span>
+                      <span class="field-val" [class.expired-date]="d.isExpired">
+                        {{ d.tenureEndDate ? (d.tenureEndDate | date: 'dd MMM yyyy') : '—' }}
+                        @if (d.isExpired) {
+                          <span class="expired-tag">Expired</span>
+                        }
+                      </span>
+                    </div>
+                  </div>
+                </div>
+
+                <div class="meta-row">
+                  @if (d.resolutionNo) {
+                    <span class="meta-tag"><mat-icon>description</mat-icon>{{ d.resolutionNo }}</span>
+                  }
+                  @if (d.appointmentDate) {
+                    <span class="meta-tag"
+                      ><mat-icon>calendar_today</mat-icon>{{ d.appointmentDate | date: 'dd MMM yyyy' }}</span
+                    >
+                  }
+                </div>
+
+                @if (d.remarks) {
+                  <p class="remarks-text">{{ d.remarks }}</p>
+                }
+
+                <div class="card-actions">
+                  <button class="btn-edit" (click)="openEdit(d)"><mat-icon>edit</mat-icon> Edit</button>
+                  <button
+                    class="btn-delete"
+                    (click)="confirmRemove(d)"
+                    [disabled]="deleting === d.id || d.status === 'REMOVED'"
+                  >
+                    <mat-icon>person_remove</mat-icon>
+                    {{ deleting === d.id ? 'Removing...' : 'Remove' }}
+                  </button>
+                </div>
+              </div>
+            }
+          </div>
+
+          @if (group.directors.length > 6) {
+            <button class="expand-btn" (click)="group.showAll = !group.showAll; $event.stopPropagation()">
+              @if (!group.showAll) {
+                <mat-icon>expand_more</mat-icon>
+                Show {{ group.directors.length - 6 }} more member{{ group.directors.length - 6 !== 1 ? 's' : '' }}
+              } @else {
+                <mat-icon>expand_less</mat-icon>
+                Show less
+              }
+            </button>
+          }
+        }
       </div>
     }
   }
diff --git a/src/app/election/components/director-board/director-board.component.scss b/src/app/election/components/director-board/director-board.component.scss
index 337c6cc50..4ddad67a6 100644
--- a/src/app/election/components/director-board/director-board.component.scss
+++ b/src/app/election/components/director-board/director-board.component.scss
@@ -320,11 +320,208 @@ $font:
   }
 }
 
+// ── Election Group ────────────────────────────────────────────────
+.election-group {
+  margin-bottom: 36px;
+
+  &.past-group {
+    opacity: 0.82;
+  }
+}
+
+.election-group-header {
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  padding: 16px 20px;
+  background: #fff;
+  border: $border;
+  border-radius: $radius $radius 0 0;
+  border-bottom: 3px solid #cbd5e1;
+  margin-bottom: 0;
+  cursor: pointer;
+  user-select: none;
+  transition: background 0.15s;
+
+  &:hover {
+    background: #f8fafc;
+  }
+
+  &.current-header {
+    border-bottom-color: $primary;
+    background: linear-gradient(135deg, #fff 0%, rgb(99 102 241 / 2%) 100%);
+
+    &:hover {
+      background: linear-gradient(135deg, #f8fafc 0%, rgb(99 102 241 / 4%) 100%);
+    }
+  }
+
+  &:not(.header-open) {
+    border-radius: $radius;
+    border-bottom-width: 1px;
+    border-bottom-color: rgb(226 232 240 / 80%);
+  }
+}
+
+.group-chevron {
+  font-size: 20px;
+  height: 20px;
+  width: 20px;
+  color: $sub;
+  flex-shrink: 0;
+  transition: transform 0.25s ease;
+
+  &.chevron-open {
+    transform: rotate(180deg);
+  }
+}
+
+.election-title-row {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  flex-wrap: wrap;
+  margin-bottom: 4px;
+
+  h3 {
+    font-size: 16px;
+    font-weight: 700;
+    color: $text;
+    margin: 0;
+  }
+}
+
+.current-badge {
+  display: inline-flex;
+  align-items: center;
+  gap: 3px;
+  font-size: 11px;
+  font-weight: 700;
+  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
+  color: #065f46;
+  padding: 2px 8px 2px 5px;
+  border-radius: 12px;
+  letter-spacing: 0.2px;
+
+  mat-icon {
+    font-size: 12px;
+    height: 12px;
+    width: 12px;
+  }
+}
+
+.past-badge {
+  display: inline-flex;
+  align-items: center;
+  font-size: 11px;
+  font-weight: 600;
+  background: #f1f5f9;
+  color: #94a3b8;
+  padding: 2px 8px;
+  border-radius: 12px;
+  letter-spacing: 0.2px;
+}
+
+.election-group-icon {
+  width: 44px;
+  height: 44px;
+  border-radius: 12px;
+  background: linear-gradient(135deg, $primary 0%, #4f46e5 100%);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  flex-shrink: 0;
+
+  mat-icon {
+    font-size: 22px;
+    height: 22px;
+    width: 22px;
+    color: #fff;
+  }
+
+  &.past-icon {
+    background: linear-gradient(135deg, #94a3b8 0%, #64748b 100%);
+  }
+}
+
+.election-group-info {
+  flex: 1;
+  min-width: 0;
+}
+
+.election-tenure-range {
+  display: inline-flex;
+  align-items: center;
+  gap: 5px;
+  font-size: 12px;
+  font-weight: 500;
+  color: $sub;
+
+  mat-icon {
+    font-size: 14px;
+    height: 14px;
+    width: 14px;
+  }
+}
+
+.election-member-count {
+  font-size: 12px;
+  font-weight: 700;
+  background: rgb(99 102 241 / 10%);
+  color: $primary;
+  padding: 4px 12px;
+  border-radius: 20px;
+  flex-shrink: 0;
+
+  &.past-count {
+    background: #f1f5f9;
+    color: #94a3b8;
+  }
+}
+
+// ── Expand / Collapse ─────────────────────────────────────────────
+.expand-btn {
+  width: 100%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 6px;
+  padding: 11px;
+  background: #fff;
+  border: $border;
+  border-top: none;
+  border-radius: 0 0 $radius $radius;
+  font-size: 13px;
+  font-weight: 600;
+  color: $primary;
+  cursor: pointer;
+  transition: background 0.15s;
+
+  mat-icon {
+    font-size: 18px;
+    height: 18px;
+    width: 18px;
+  }
+
+  &:hover {
+    background: rgb(99 102 241 / 4%);
+  }
+}
+
 // ── Director Cards Grid ───────────────────────────────────────────
 .directors-grid {
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
-  gap: 20px;
+  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
+  gap: 14px;
+  background: #f1f5f9;
+  border: $border;
+  border-top: none;
+  border-radius: 0;
+  padding: 16px;
+}
+
+.election-group:not(:has(.expand-btn)) .directors-grid {
+  border-radius: 0 0 $radius $radius;
 }
 
 .director-card {
@@ -332,10 +529,10 @@ $font:
   border-radius: $radius;
   border: $border;
   box-shadow: $shadow;
-  padding: 20px;
+  padding: 14px 16px;
   display: flex;
   flex-direction: column;
-  gap: 12px;
+  gap: 10px;
   transition: all 0.25s;
 
   &:hover {
@@ -362,6 +559,14 @@ $font:
   align-items: center;
   justify-content: center;
   flex-shrink: 0;
+  overflow: hidden;
+}
+
+.director-avatar-img {
+  width: 100%;
+  height: 100%;
+  object-fit: cover;
+  border-radius: 50%;
 }
 
 .director-info {
diff --git a/src/app/election/components/director-board/director-board.component.ts b/src/app/election/components/director-board/director-board.component.ts
index 8a7204990..b4b9a2760 100644
--- a/src/app/election/components/director-board/director-board.component.ts
+++ b/src/app/election/components/director-board/director-board.component.ts
@@ -17,6 +17,7 @@ import { MatNativeDateModule } from '@angular/material/core';
 import { MatFormFieldModule } from '@angular/material/form-field';
 import { MatInputModule } from '@angular/material/input';
 import { MatSelectModule } from '@angular/material/select';
+import { DomSanitizer, SafeResourceUrl } from '@angular/platform-browser';
 import { ElectionService } from '../../election.service';
 
 @Component({
@@ -41,6 +42,9 @@ import { ElectionService } from '../../election.service';
 export class DirectorBoardComponent implements OnInit {
   private service = inject(ElectionService);
   private snackBar = inject(MatSnackBar);
+  private sanitizer = inject(DomSanitizer);
+
+  directorPhotoMap: Record<number, SafeResourceUrl | null> = {};
 
   // ── Pending appointments ───────────────────────────────────────
   pendingCandidates: any[] = [];
@@ -48,10 +52,11 @@ export class DirectorBoardComponent implements OnInit {
 
   // ── Director list ──────────────────────────────────────────────
   directors: any[] = [];
+  electionGroups: any[] = [];
   loading = true;
   totalElements = 0;
   page = 0;
-  pageSize = 20;
+  pageSize = 100;
 
   filterStatus = '';
   statusOptions = [
@@ -150,10 +155,13 @@ export class DirectorBoardComponent implements OnInit {
             isExpired: d.tenureEndDate ? d.tenureEndDate < todayStr : false
           }));
           this.totalElements = data?.totalElements ?? 0;
+          this.electionGroups = this.groupByElection(this.directors);
           this.loading = false;
+          this.loadDirectorPhotos(this.directors);
         },
         error: () => {
           this.directors = [];
+          this.electionGroups = [];
           this.totalElements = 0;
           this.loading = false;
         }
@@ -165,6 +173,19 @@ export class DirectorBoardComponent implements OnInit {
     this.load();
   }
 
+  private loadDirectorPhotos(directors: any[]): void {
+    for (const d of directors) {
+      if (!d.memberId || this.directorPhotoMap[d.id] !== undefined) continue;
+      this.service.getClientImage(d.memberId).subscribe((base64) => {
+        this.directorPhotoMap[d.id] = base64 ? this.sanitizer.bypassSecurityTrustResourceUrl(base64) : null;
+      });
+    }
+  }
+
+  getDirectorPhoto(d: any): SafeResourceUrl | null {
+    return this.directorPhotoMap[d.id] ?? null;
+  }
+
   // ── Open appoint drawer (step 1) ───────────────────────────────
   openAppoint(): void {
     this.submitted = false;
@@ -370,6 +391,42 @@ export class DirectorBoardComponent implements OnInit {
     return map[status] ?? '#94a3b8';
   }
 
+  private groupByElection(directors: any[]): any[] {
+    const todayStr = new Date().toISOString().slice(0, 10);
+    const map = new Map<number, any>();
+    for (const d of directors) {
+      if (!map.has(d.electionId)) {
+        map.set(d.electionId, {
+          electionId: d.electionId,
+          electionTitle: d.electionTitle || `Election #${d.electionId}`,
+          tenureStart: null,
+          tenureEnd: null,
+          isCurrent: false,
+          directors: []
+        });
+      }
+      const group = map.get(d.electionId);
+      group.directors.push(d);
+      if (d.tenureStartDate && (!group.tenureStart || d.tenureStartDate < group.tenureStart)) {
+        group.tenureStart = d.tenureStartDate;
+      }
+      if (d.tenureEndDate && (!group.tenureEnd || d.tenureEndDate > group.tenureEnd)) {
+        group.tenureEnd = d.tenureEndDate;
+      }
+    }
+    const groups = Array.from(map.values());
+    for (const g of groups) {
+      g.isCurrent = g.tenureEnd ? g.tenureEnd >= todayStr : false;
+      g.open = g.isCurrent;
+      g.showAll = false;
+    }
+    return groups.sort((a, b) => {
+      const aStart = a.tenureStart ?? '';
+      const bStart = b.tenureStart ?? '';
+      return bStart.localeCompare(aStart);
+    });
+  }
+
   private formatDate(date: Date | null): string | null {
     if (!date) return null;
     const y = date.getFullYear();