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Compare

Siân Berry vs Deirdre Costigan

A side-by-side comparison of voting participation, party rebellion, topic focus, and recent voting overlap.

Photograph of Siân Berry
Siân Berry
Green Brighton Pavilion
vs
Photograph of Deirdre Costigan
Deirdre Costigan
Lab Ealing Southall

Voting alignment

Siân Berry and Deirdre Costigan voted the same way 58% of the time, based on 389 shared comparable votes.

227 same votes 162 different votes 389 shared votes

Alignment only includes divisions where both MPs recorded an Aye or No vote. Tellers, absences, abstentions, and missing votes are excluded.

Topic alignment

Closest by topic
3 Aye 1 No
Foreign Affairs 100% aligned 4 shared votes
3 Aye 1 No
22 Aye 5 No
Work / Employment 93% aligned 27 shared votes
20 Aye 7 No
8 Aye 6 No
Energy 79% aligned 14 shared votes
7 Aye 7 No
8 Aye 5 No
Democracy / Parliament 77% aligned 13 shared votes
5 Aye 8 No
32 Aye 32 No
Tax 72% aligned 64 shared votes
40 Aye 24 No
Most different by topic
3 Aye 12 No
Devolution / Local Government 0% aligned 15 shared votes
12 Aye 3 No
8 Aye 6 No
Benefits 29% aligned 14 shared votes
4 Aye 10 No
22 Aye 28 No
Crime / Justice 40% aligned 50 shared votes
26 Aye 24 No
13 Aye 5 No
Defence 44% aligned 18 shared votes
7 Aye 11 No
4 Aye 5 No
Digital / Online Safety 44% aligned 9 shared votes
7 Aye 2 No

Topic alignment uses local topic tags, so a division can count towards more than one topic.

Voting record

79.5%
7% above average
Rank 209 of 649
Participation
91.2%
19% above average
Rank 13 of 649
469
590 eligible divisions
Total votes
538
590 eligible divisions
259
55.2% of votes cast
Aye votes
277
51.5% of votes cast
210
44.8% of votes cast
No votes
261
48.5% of votes cast
1
0.2% of votes cast
Against party
1
0.2% of votes cast
2 years, 3 months
Since 4 Jul 2024
Commons service
2 years, 3 months
Since 4 Jul 2024

Debates

99
+15.3 vs Commons average
Rank 170 of 649
Appearances
29
-54.7 vs Commons average
Rank 563 of 649
225
+79.1 vs Commons average
Rank 111 of 649
Contributions
33
-112.9 vs Commons average
Rank 568 of 649

Debate figures cover imported Hansard debate appearances from the last 12 months.

Financials and interests

£220,854
all imported IPSA years
Lifetime expenses
£196,485
all imported IPSA years
£220,854
2% below average
Latest expenses
£196,485
13% below average
4
1 registered category
Registered interests
0
0 registered categories
3
matched sponsored bills
Sponsored bills
1
matched sponsored bills

Expenses use IPSA totals for financial year 2024-25. Sponsored bill counts depend on currently imported bill sponsor metadata.

Most active voting topics

Housing
32 of 32 votes
#1
Work / Employment
39 of 39 votes
Democracy / Parliament
14 of 14 votes
#2
Housing
32 of 32 votes
Foreign Affairs
4 of 4 votes
#3
Democracy / Parliament
14 of 14 votes
Work / Employment
34 of 39 votes
#4
Migration
13 of 13 votes
Crime / Justice
54 of 62 votes
#5
Digital / Online Safety
11 of 11 votes

Recent voting overlap

Where they voted differently
Aye
Health Bill: Report Stage: Amendment 1 8 Sept 2026
No
Aye
Health Bill: Report Stage: New Clause 140 8 Sept 2026
No
Aye
Health Bill: Report Stage: New Clause 145 7 Sept 2026
No
Aye
Health Bill: Report Stage: New Clause 6 7 Sept 2026
No
Aye
Representation of the People Bill: Report Stage: New Clause 88 2 Sept 2026
Democracy / Parliament
No
Aye
Public Office (Accountability) Bill Report Stage: Amendment 3 14 Jul 2026
No
No
Immigration and Asylum Bill: Second Reading 13 Jul 2026
Migration
Aye
No
Draft Town and Country Planning (Discharge of Local Planning Authority Functions) (England) Regulations 2026 8 Jul 2026
Aye
Aye
Taxation (Energy and Vehicles) Bill Committee: New Clause 2 1 Jul 2026
Energy Tax Transport
No
Aye
Armed Forces Bill Report Stage: Amendment 11 22 Jun 2026
Defence
No
Where they voted the same
Aye
Terminally Ill Adults (End of Life) Bill: Second Reading 11 Sept 2026
Aye
Aye
Closure motion 11 Sept 2026
Aye
No
Social Housing Bill [Lords]: Reasoned Amendment to Second Reading 10 Sept 2026
Housing
No
Aye
Draft Plant Health, Seeds, Seed Potatoes and Plant Propagating Material (Amendment) (Northern Ireland) Regulations 2026 9 Sept 2026
Aye
No
Health Bill: Report Stage: New Clause 143 8 Sept 2026
No
No
Health Bill: Report Stage: New Clause 142 8 Sept 2026
No
Aye
Representation of the People Bill: Third Reading 2 Sept 2026
Democracy / Parliament
Aye
No
Representation of the People Bill: Report Stage: New Clause 67 2 Sept 2026
Democracy / Parliament
No
No
Representation of the People Bill: Report Stage: New Clause 65 2 Sept 2026
Democracy / Parliament
No
Aye
Draft Code of Practice on Electronic and Workplace Ballots for Statutory Trade Union Ballots 15 Jul 2026
Trade Work / Employment
Aye
Member source UK Parliament Members API
Voting source Commons Votes API