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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 326 shared comparable votes.

210 same votes 116 different votes 326 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
3 Aye 6 No
Democracy / Parliament 78% aligned 9 shared votes
5 Aye 4 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

75.4 %
3 % above average
Rank 304 of 649
Participation
79.1 %
6 % above average
Rank 220 of 649
589
781 eligible divisions
Total votes
455
575 eligible divisions
290
49.2 % of votes cast
Aye votes
250
54.9 % of votes cast
299
50.8 % of votes cast
No votes
205
45.1 % of votes cast
0
0.0 % of votes cast
Against party
1
0.2 % of votes cast
3 years, 1 months
Since 20 Jul 2023
Commons service
2 years, 1 months
Since 4 Jul 2024

Debates

103
+25.1 vs Commons average
Rank 145 of 650
Appearances
91
+13.1 vs Commons average
Rank 181 of 650
507
+368.7 vs Commons average
Rank 19 of 650
Contributions
184
+45.7 vs Commons average
Rank 139 of 650

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
31 of 31 votes
Transport
31 of 33 votes
#2
Democracy / Parliament
10 of 10 votes
Democracy / Parliament
12 of 13 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
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
No
Armed Forces Bill Report Stage: New Clause 4 22 Jun 2026
Defence
Aye
No
Cyber Security and Resilience (Network and Information Systems) Bill Remaining Stages: Amendment 3 16 Jun 2026
Aye
No
Cyber Security and Resilience (Network and Information Systems) Bill Remaining Stages: New Clause 13 16 Jun 2026
Aye
No
Railways Bill Remaining Stages: Amendment 143 10 Jun 2026
Transport
Aye
No
Railways Bill Remaining Stages: New Clause 1 10 Jun 2026
Transport
Aye
Where they voted the same
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
No
Public Office (Accountability) Bill Report Stage: Amendment 19 14 Jul 2026
No
No
Public Office (Accountability) Bill Report Stage: Amendment 199 14 Jul 2026
No
No
Immigration and Asylum Bill: Reasoned Amendment to Second Reading 13 Jul 2026
Migration
No
Aye
Draft Children’s Wellbeing and Schools Act 2026 (Establishment of Schools) (Consequential Amendments) Regulations 2026 8 Jul 2026
Education
Aye
Aye
Draft Supply of Machinery (Safety) (Amendment etc.) and the EU Machinery Regulation (Enforcement etc. in Northern Ireland) Regulations 2026 8 Jul 2026
Aye
No
Taxation (Energy and Vehicles) Bill Committee: New Clause 5 1 Jul 2026
Energy Tax Transport
No
Aye
Employment Tribunal (Extension of Time Limits) (Miscellaneous Amendments and Transitional Provisions) Regulations 2026 1 Jul 2026
Aye
Aye
Employment Tribunals Extension of Jurisdiction (England and Wales) (Amendment) Order 2026 1 Jul 2026
Aye
Member source UK Parliament Members API
Voting source Commons Votes API