Compare

Keir Mather vs David Simmonds

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 David Simmonds
David Simmonds
Con Ruislip, Northwood and Pinner

Voting alignment

Keir Mather and David Simmonds voted the same way 4% of the time, based on 386 shared comparable votes.

14 same votes 372 different votes 386 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 0 No
Environment / Climate 33% aligned 3 shared votes
1 Aye 2 No
3 Aye 7 No
NHS / Health 20% aligned 10 shared votes
9 Aye 1 No
7 Aye 8 No
Benefits 13% aligned 15 shared votes
6 Aye 9 No
5 Aye 23 No
Migration 11% aligned 28 shared votes
20 Aye 8 No
3 Aye 8 No
Democracy / Parliament 9% aligned 11 shared votes
7 Aye 4 No
Most different by topic
40 Aye 28 No
Tax 0% aligned 68 shared votes
28 Aye 40 No
24 Aye 7 No
Education 0% aligned 31 shared votes
7 Aye 24 No
18 Aye 10 No
Work / Employment 0% aligned 28 shared votes
10 Aye 18 No
9 Aye 12 No
Defence 0% aligned 21 shared votes
12 Aye 9 No
18 Aye 2 No
Digital / Online Safety 0% aligned 20 shared votes
2 Aye 18 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
83.2%
11% above average
Rank 133 of 649
602
796 eligible divisions
Total votes
1,379
1,658 eligible divisions
294
48.8% of votes cast
Aye votes
664
48.2% of votes cast
308
51.2% of votes cast
No votes
715
51.8% of votes cast
0
0.0% of votes cast
Against party
9
0.7% of votes cast
3 years, 2 months
Since 20 Jul 2023
Commons service
6 years, 9 months
Since 12 Dec 2019

Debates

103
+19.4 vs Commons average
Rank 160 of 650
Appearances
108
+24.4 vs Commons average
Rank 143 of 650
546
+400.3 vs Commons average
Rank 16 of 650
Contributions
244
+98.3 vs Commons average
Rank 93 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
£1,105,547
all imported IPSA years
£306,391
35% above average
Latest expenses
£252,887
12% above average
1
1 registered category
Registered interests
7
3 registered categories
0
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

Education
50 of 52 votes
#1
Democracy / Parliament
39 of 41 votes
Democracy / Parliament
16 of 17 votes
#2
Migration
145 of 154 votes
Transport
31 of 33 votes
#3
Housing
49 of 54 votes
Benefits
27 of 31 votes
#4
Environment / Climate
39 of 44 votes
NHS / Health
12 of 14 votes
#5
Defence
62 of 70 votes

Recent voting overlap

Where they voted differently
Aye
Terminally Ill Adults (End of Life) Bill: Second Reading 11 Sept 2026
No
Aye
Closure motion 11 Sept 2026
No
Aye
Draft Plant Health, Seeds, Seed Potatoes and Plant Propagating Material (Amendment) (Northern Ireland) Regulations 2026 9 Sept 2026
No
No
Health Bill: Report Stage: New Clause 145 7 Sept 2026
Aye
Aye
Representation of the People Bill: Third Reading 2 Sept 2026
Democracy / Parliament
No
No
Representation of the People Bill: Report Stage: New Clause 67 2 Sept 2026
Democracy / Parliament
Aye
No
Representation of the People Bill: Report Stage: New Clause 65 2 Sept 2026
Democracy / Parliament
Aye
Aye
Draft Trade Unions (Permissible Means of Voting) and Employment Rights (Unfair Dismissal) (Amendment) Order 2026 15 Jul 2026
Trade Work / Employment
No
Aye
Draft Code of Practice on Electronic and Workplace Ballots for Statutory Trade Union Ballots 15 Jul 2026
Trade Work / Employment
No
No
Public Office (Accountability) Bill Report Stage: Amendment 19 14 Jul 2026
Aye
Where they voted the same
No
Representation of the People Bill: Report Stage: New Clause 88 2 Sept 2026
Democracy / Parliament
No
No
King's Speech Motion for an Address: amendment (l) 20 May 2026
No
No
Universal Credit and Personal Independence Payment Bill Committee: New Clause 8 9 Jul 2025
Benefits
No
No
Universal Credit and Personal Independent Payment Bill Committee: Amendment 39 9 Jul 2025
Benefits
No
Aye
Terrorism Act 2000 (Proscribed Organisations) (Amendment) Order 2025 2 Jul 2025
Crime / Justice
Aye
No
Crime and Policing Bill Report Stage: Amendment 160 17 Jun 2025
Crime / Justice
No
Aye
Tobacco and Vapes Bill: Third Reading 26 Mar 2025
NHS / Health
Aye
Aye
Tobacco and Vapes Bill: Second Reading 26 Nov 2024
NHS / Health
Aye
No
Safety of Rwanda (Asylum and Immigration) Bill Committee: Amendment 23 17 Jan 2024
Migration
No
No
Safety of Rwanda (Asylum and Immigration) Bill Committee: Amendment 19 16 Jan 2024
Migration
No
Member source UK Parliament Members API
Voting source Commons Votes API