Compare

Sir Keir Starmer vs Keir Mather

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

Photograph of Sir Keir Starmer
Sir Keir Starmer
Lab Holborn and St Pancras
vs
Photograph of Keir Mather
Keir Mather
Lab Selby

Voting alignment

Sir Keir Starmer and Keir Mather voted the same way 100% of the time, based on 66 shared comparable votes.

66 same votes 0 different votes 66 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
5 Aye 19 No
Migration 100% aligned 24 shared votes
5 Aye 19 No
6 Aye 2 No
Tax 100% aligned 8 shared votes
6 Aye 2 No
5 Aye 1 No
Work / Employment 100% aligned 6 shared votes
5 Aye 1 No
2 Aye 1 No
Benefits 100% aligned 3 shared votes
2 Aye 1 No
2 Aye 1 No
Crime / Justice 100% aligned 3 shared votes
2 Aye 1 No
Most different by topic
5 Aye 19 No
Migration 100% aligned 24 shared votes
5 Aye 19 No
6 Aye 2 No
Tax 100% aligned 8 shared votes
6 Aye 2 No
5 Aye 1 No
Work / Employment 100% aligned 6 shared votes
5 Aye 1 No
2 Aye 1 No
Benefits 100% aligned 3 shared votes
2 Aye 1 No
2 Aye 1 No
Crime / Justice 100% aligned 3 shared votes
2 Aye 1 No

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

Voting record

38.4 %
35 % below average
Rank 633 of 647
Participation
75.2 %
2 % above average
Rank 314 of 647
893
2,323 eligible divisions
Total votes
559
743 eligible divisions
545
61.0 % of votes cast
Aye votes
276
49.4 % of votes cast
348
39.0 % of votes cast
No votes
283
50.6 % of votes cast
2
0.2 % of votes cast
Against party
0
0.0 % of votes cast
11 years, 1 months
Since 7 May 2015
Commons service
2 years, 10 months
Since 20 Jul 2023

Debates

44
-19.7 vs Commons average
Rank 401 of 647
Appearances
76
+12.3 vs Commons average
Rank 174 of 647
1,405
+1291.2 vs Commons average
Rank 2 of 647
Contributions
301
+187.2 vs Commons average
Rank 44 of 647

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

Financials and interests

£1,930,144
all imported IPSA years
Lifetime expenses
£451,152
all imported IPSA years
£232,065
3 % above average
Latest expenses
£306,391
35 % above average
15
3 registered categories
Registered interests
1
1 registered category
1
matched sponsored bills
Sponsored bills
0
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

Brexit / EU
161 of 211 votes
#1
Defence
23 of 23 votes
Trade
51 of 88 votes
#2
Education
49 of 51 votes
Environment / Climate
25 of 45 votes
#3
Transport
27 of 29 votes
Foreign Affairs
37 of 69 votes
#4
Democracy / Parliament
12 of 13 votes
Transport
42 of 91 votes
#5
Benefits
27 of 31 votes

Recent voting overlap

These MPs agreed on every division where both voted in the current comparison sample.

Where they voted the same
No
King's Speech Motion for an Address: amendment (i) 19 May 2026
No
No
Privilege 28 Apr 2026
No
Aye
Draft Employment Rights Act 2025 (Investigatory Powers) (Consequential Amendments) Regulations 2026 18 Mar 2026
Crime / Justice Digital / Online Safety Work / Employment
Aye
Aye
Draft Higher Education (Fee Limits and Fee Limit Condition) (England) (Amendment) Regulations 2026 18 Mar 2026
Education
Aye
Aye
Courts and Tribunals Bill: Second Reading 10 Mar 2026
Crime / Justice
Aye
No
Courts and Tribunals Bill: Reasoned Amendment to Second Reading 10 Mar 2026
Crime / Justice
No
No
Opposition Day: Protections for children from online harms 24 Feb 2026
Education
No
Aye
Universal Credit (Removal of Two Child Limit) Bill: Second Reading 3 Feb 2026
Benefits
Aye
Aye
Draft Public Order Act 2023 (Interference With Use or Operation of Key National Infrastructure) Regulations 2025 14 Jan 2026
Aye
Aye
Budget Resolution No. 50: Inheritance tax (limiting agricultural and business property reliefs etc) 2 Dec 2025
Tax Transport
Aye
Member source UK Parliament Members API
Voting source Commons Votes API