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Compare

Keir Mather vs Siân Berry

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

Photograph of Keir Mather
Keir Mather
Lab Selby
vs
Photograph of Siân Berry
Siân Berry
Green Brighton Pavilion

Voting alignment

Keir Mather and Siân Berry voted the same way 64% of the time, based on 339 shared comparable votes.

218 same votes 121 different votes 339 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
4 Aye 2 No
Environment / Climate 100% aligned 6 shared votes
4 Aye 2 No
22 Aye 3 No
Work / Employment 96% aligned 25 shared votes
21 Aye 4 No
6 Aye 4 No
Energy 80% aligned 10 shared votes
6 Aye 4 No
36 Aye 23 No
Tax 80% aligned 59 shared votes
34 Aye 25 No
4 Aye 9 No
Democracy / Parliament 77% aligned 13 shared votes
7 Aye 6 No
Most different by topic
0 Aye 5 No
Devolution / Local Government 20% aligned 5 shared votes
4 Aye 1 No
3 Aye 1 No
Migration 25% aligned 4 shared votes
0 Aye 4 No
16 Aye 18 No
Crime / Justice 41% aligned 34 shared votes
18 Aye 16 No
7 Aye 2 No
Digital / Online Safety 44% aligned 9 shared votes
4 Aye 5 No
10 Aye 9 No
Benefits 47% aligned 19 shared votes
12 Aye 7 No

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

Voting record

75.6%
3% above average
Rank 296 of 649
Participation
79.5%
7% above average
Rank 209 of 649
602
796 eligible divisions
Total votes
469
590 eligible divisions
294
48.8% of votes cast
Aye votes
259
55.2% of votes cast
308
51.2% of votes cast
No votes
210
44.8% of votes cast
0
0.0% of votes cast
Against party
1
0.2% of votes cast
3 years, 2 months
Since 20 Jul 2023
Commons service
2 years, 3 months
Since 4 Jul 2024

Debates

103
+19.3 vs Commons average
Rank 160 of 649
Appearances
99
+15.3 vs Commons average
Rank 170 of 649
546
+400.1 vs Commons average
Rank 16 of 649
Contributions
225
+79.1 vs Commons average
Rank 111 of 649

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

Financials and interests

£451,152
all imported IPSA years
Lifetime expenses
£220,854
all imported IPSA years
£306,391
35% above average
Latest expenses
£220,854
2% below average
1
1 registered category
Registered interests
4
1 registered category
0
matched sponsored bills
Sponsored bills
3
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

Education
50 of 52 votes
#1
Housing
32 of 32 votes
Democracy / Parliament
16 of 17 votes
#2
Democracy / Parliament
14 of 14 votes
Transport
31 of 33 votes
#3
Foreign Affairs
4 of 4 votes
Benefits
27 of 31 votes
#4
Work / Employment
34 of 39 votes
NHS / Health
12 of 14 votes
#5
Crime / Justice
54 of 62 votes

Recent voting overlap

Where they voted differently
No
Health Bill: Report Stage: Amendment 1 8 Sept 2026
Aye
No
Health Bill: Report Stage: New Clause 140 8 Sept 2026
Aye
No
Health Bill: Report Stage: New Clause 145 7 Sept 2026
Aye
No
Health Bill: Report Stage: New Clause 6 7 Sept 2026
Aye
No
Representation of the People Bill: Report Stage: New Clause 88 2 Sept 2026
Democracy / Parliament
Aye
No
Public Office (Accountability) Bill Report Stage: Amendment 3 14 Jul 2026
Aye
Aye
Immigration and Asylum Bill: Second Reading 13 Jul 2026
Migration
No
Aye
Draft Town and Country Planning (Discharge of Local Planning Authority Functions) (England) Regulations 2026 8 Jul 2026
No
No
Taxation (Energy and Vehicles) Bill Committee: New Clause 2 1 Jul 2026
Energy Tax Transport
Aye
No
Armed Forces Bill Report Stage: Amendment 11 22 Jun 2026
Defence
Aye
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
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 Trade Unions (Permissible Means of Voting) and Employment Rights (Unfair Dismissal) (Amendment) Order 2026 15 Jul 2026
Trade Work / Employment
Aye
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