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Compare

Keir Mather vs Sir Iain Duncan Smith

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 Sir Iain Duncan Smith
Sir Iain Duncan Smith
Con Chingford and Woodford Green

Voting alignment

Keir Mather and Sir Iain Duncan Smith voted the same way 2% of the time, based on 397 shared comparable votes.

9 same votes 388 different votes 397 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
10 Aye 8 No
Benefits 11% aligned 18 shared votes
6 Aye 12 No
22 Aye 27 No
Crime / Justice 6% aligned 49 shared votes
26 Aye 23 No
46 Aye 23 No
Tax 1% aligned 69 shared votes
22 Aye 47 No
27 Aye 7 No
Education 0% aligned 34 shared votes
7 Aye 27 No
6 Aye 21 No
Migration 0% aligned 27 shared votes
21 Aye 6 No
Most different by topic
27 Aye 7 No
Education 0% aligned 34 shared votes
7 Aye 27 No
6 Aye 21 No
Migration 0% aligned 27 shared votes
21 Aye 6 No
22 Aye 2 No
Work / Employment 0% aligned 24 shared votes
2 Aye 22 No
11 Aye 10 No
Defence 0% aligned 21 shared votes
10 Aye 11 No
8 Aye 12 No
Transport 0% aligned 20 shared votes
12 Aye 8 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
81.5 %
9 % above average
Rank 173 of 649
589
781 eligible divisions
Total votes
1,925
2,361 eligible divisions
290
49.2 % of votes cast
Aye votes
882
45.8 % of votes cast
299
50.8 % of votes cast
No votes
1,043
54.2 % of votes cast
0
0.0 % of votes cast
Against party
41
2.1 % of votes cast
3 years, 1 months
Since 20 Jul 2023
Commons service
34 years, 4 months
Since 9 Apr 1992

Debates

103
+25.1 vs Commons average
Rank 145 of 650
Appearances
93
+15.1 vs Commons average
Rank 172 of 650
507
+368.7 vs Commons average
Rank 19 of 650
Contributions
171
+32.7 vs Commons average
Rank 152 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
£2,530,064
all imported IPSA years
£306,391
35 % above average
Latest expenses
£265,254
17 % above average
1
1 registered category
Registered interests
10
3 registered categories
0
matched sponsored bills
Sponsored bills
6
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
Brexit / EU
208 of 211 votes
Transport
31 of 33 votes
#2
Foreign Affairs
63 of 69 votes
Democracy / Parliament
12 of 13 votes
#3
Housing
60 of 66 votes
Benefits
27 of 31 votes
#4
Migration
153 of 171 votes
NHS / Health
12 of 14 votes
#5
Crime / Justice
198 of 230 votes

Recent voting overlap

Where they voted differently
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
No
Public Office (Accountability) Bill Report Stage: Amendment 199 14 Jul 2026
Aye
No
Immigration and Asylum Bill: Reasoned Amendment to Second Reading 13 Jul 2026
Migration
Aye
Aye
Draft Children’s Wellbeing and Schools Act 2026 (Establishment of Schools) (Consequential Amendments) Regulations 2026 8 Jul 2026
Education
No
Aye
Draft Supply of Machinery (Safety) (Amendment etc.) and the EU Machinery Regulation (Enforcement etc. in Northern Ireland) Regulations 2026 8 Jul 2026
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 5 1 Jul 2026
Energy Tax Transport
Aye
No
Taxation (Energy and Vehicles) Bill Committee: New Clause 4 1 Jul 2026
Energy Tax Transport
Aye
Where they voted the same
No
King's Speech Motion for an Address: amendment (l) 20 May 2026
No
No
Sentencing Bill Committee: New Clause 30 21 Oct 2025
Crime / Justice
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
No
Motion to sit in private 21 Feb 2024
Tax
No
Aye
Draft Equality Act 2010 (Amendment) Regulations 2023 13 Dec 2023
Aye
Aye
Misuse of Drugs Act 1971 (Amendment) Order 2023 12 Sep 2023
Aye
Member source UK Parliament Members API
Voting source Commons Votes API