Compare

Tristan Osborne vs Keir Mather

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

Photograph of Tristan Osborne
Tristan Osborne
Lab Chatham and Aylesford
vs
Photograph of Keir Mather
Keir Mather
Lab Selby

Voting alignment

Tristan Osborne and Keir Mather voted the same way 100% of the time, based on 384 shared comparable votes.

384 same votes 0 different votes 384 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
44 Aye 35 No
Tax 100% aligned 79 shared votes
44 Aye 35 No
28 Aye 13 No
Education 100% aligned 41 shared votes
28 Aye 13 No
18 Aye 18 No
Crime / Justice 100% aligned 36 shared votes
18 Aye 18 No
11 Aye 17 No
Defence 100% aligned 28 shared votes
11 Aye 17 No
20 Aye 5 No
Work / Employment 100% aligned 25 shared votes
20 Aye 5 No
Most different by topic
44 Aye 35 No
Tax 100% aligned 79 shared votes
44 Aye 35 No
28 Aye 13 No
Education 100% aligned 41 shared votes
28 Aye 13 No
18 Aye 18 No
Crime / Justice 100% aligned 36 shared votes
18 Aye 18 No
11 Aye 17 No
Defence 100% aligned 28 shared votes
11 Aye 17 No
20 Aye 5 No
Work / Employment 100% aligned 25 shared votes
20 Aye 5 No

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

Voting record

93.6 %
21 % above average
Rank 5 of 650
Participation
75.1 %
2 % above average
Rank 310 of 650
529
565 eligible divisions
Total votes
579
771 eligible divisions
271
51.2 % of votes cast
Aye votes
284
49.1 % of votes cast
258
48.8 % of votes cast
No votes
295
50.9 % of votes cast
1
0.2 % of votes cast
Against party
0
0.0 % of votes cast
2 years, 0 months
Since 4 Jul 2024
Commons service
2 years, 11 months
Since 20 Jul 2023

Debates

44
-28.5 vs Commons average
Rank 444 of 650
Appearances
89
+16.5 vs Commons average
Rank 165 of 650
53
-75.7 vs Commons average
Rank 469 of 650
Contributions
331
+202.3 vs Commons average
Rank 42 of 650

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

Financials and interests

£200,007
all imported IPSA years
Lifetime expenses
£451,152
all imported IPSA years
£200,007
12 % below average
Latest expenses
£306,391
35 % above average
1
1 registered category
Registered interests
1
1 registered category
0
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

Housing
31 of 31 votes
#1
Education
49 of 51 votes
Benefits
30 of 30 votes
#2
Transport
31 of 33 votes
Devolution / Local Government
24 of 24 votes
#3
Democracy / Parliament
12 of 13 votes
Digital / Online Safety
11 of 11 votes
#4
Benefits
27 of 31 votes
Migration
11 of 11 votes
#5
NHS / Health
12 of 14 votes

Recent voting overlap

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

Where they voted the same
No
Taxation (Energy and Vehicles) Bill Committee: New Clause 5 1 Jul 2026
Energy Tax Transport
No
No
Taxation (Energy and Vehicles) Bill Committee: New Clause 4 1 Jul 2026
Energy Tax Transport
No
No
Taxation (Energy and Vehicles) Bill Committee: New Clause 2 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
Aye
Draft Climate Change Act 2008 (Credit Limit) Order 2026 24 Jun 2026
Environment / Climate
Aye
Aye
Draft Climate Change Act 2008 (International Aviation and International Shipping) Regulations 2026 24 Jun 2026
Environment / Climate Transport
Aye
Aye
Draft Carbon Budget Order 2026 24 Jun 2026
Environment / Climate
Aye
Aye
Customs (Tariff and Miscellaneous Amendments) (No. 4) Regulations 2026 24 Jun 2026
Trade
Aye
No
Opposition Day: Puberty blockers 23 Jun 2026
No
Member source UK Parliament Members API
Voting source Commons Votes API