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Compare

Sir Iain Duncan Smith vs Keir Mather

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

Photograph of Sir Iain Duncan Smith
Sir Iain Duncan Smith
Con Chingford and Woodford Green
vs
Photograph of Keir Mather
Keir Mather
Lab Selby

Voting alignment

Sir Iain Duncan Smith and Keir Mather 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
6 Aye 12 No
Benefits 11% aligned 18 shared votes
10 Aye 8 No
26 Aye 23 No
Crime / Justice 6% aligned 49 shared votes
22 Aye 27 No
22 Aye 47 No
Tax 1% aligned 69 shared votes
46 Aye 23 No
7 Aye 27 No
Education 0% aligned 34 shared votes
27 Aye 7 No
21 Aye 6 No
Migration 0% aligned 27 shared votes
6 Aye 21 No
Most different by topic
7 Aye 27 No
Education 0% aligned 34 shared votes
27 Aye 7 No
21 Aye 6 No
Migration 0% aligned 27 shared votes
6 Aye 21 No
2 Aye 22 No
Work / Employment 0% aligned 24 shared votes
22 Aye 2 No
10 Aye 11 No
Defence 0% aligned 21 shared votes
11 Aye 10 No
12 Aye 8 No
Transport 0% aligned 20 shared votes
8 Aye 12 No

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

Voting record

81.5 %
9 % above average
Rank 173 of 649
Participation
75.4 %
3 % above average
Rank 304 of 649
1,925
2,361 eligible divisions
Total votes
589
781 eligible divisions
882
45.8 % of votes cast
Aye votes
290
49.2 % of votes cast
1,043
54.2 % of votes cast
No votes
299
50.8 % of votes cast
41
2.1 % of votes cast
Against party
0
0.0 % of votes cast
34 years, 4 months
Since 9 Apr 1992
Commons service
3 years, 1 months
Since 20 Jul 2023

Debates

93
+15.1 vs Commons average
Rank 172 of 650
Appearances
103
+25.1 vs Commons average
Rank 145 of 650
171
+32.7 vs Commons average
Rank 152 of 650
Contributions
507
+368.7 vs Commons average
Rank 19 of 650

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

Financials and interests

£2,530,064
all imported IPSA years
Lifetime expenses
£451,152
all imported IPSA years
£265,254
17 % above average
Latest expenses
£306,391
35 % above average
10
3 registered categories
Registered interests
1
1 registered category
6
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
208 of 211 votes
#1
Education
50 of 52 votes
Foreign Affairs
63 of 69 votes
#2
Transport
31 of 33 votes
Housing
60 of 66 votes
#3
Democracy / Parliament
12 of 13 votes
Migration
153 of 171 votes
#4
Benefits
27 of 31 votes
Crime / Justice
198 of 230 votes
#5
NHS / Health
12 of 14 votes

Recent voting overlap

Where they voted differently
No
Draft Trade Unions (Permissible Means of Voting) and Employment Rights (Unfair Dismissal) (Amendment) Order 2026 15 Jul 2026
Trade Work / Employment
Aye
No
Draft Code of Practice on Electronic and Workplace Ballots for Statutory Trade Union Ballots 15 Jul 2026
Trade Work / Employment
Aye
Aye
Public Office (Accountability) Bill Report Stage: Amendment 19 14 Jul 2026
No
Aye
Public Office (Accountability) Bill Report Stage: Amendment 199 14 Jul 2026
No
Aye
Immigration and Asylum Bill: Reasoned Amendment to Second Reading 13 Jul 2026
Migration
No
No
Draft Children’s Wellbeing and Schools Act 2026 (Establishment of Schools) (Consequential Amendments) Regulations 2026 8 Jul 2026
Education
Aye
No
Draft Supply of Machinery (Safety) (Amendment etc.) and the EU Machinery Regulation (Enforcement etc. in Northern Ireland) Regulations 2026 8 Jul 2026
Aye
No
Draft Town and Country Planning (Discharge of Local Planning Authority Functions) (England) Regulations 2026 8 Jul 2026
Aye
Aye
Taxation (Energy and Vehicles) Bill Committee: New Clause 5 1 Jul 2026
Energy Tax Transport
No
Aye
Taxation (Energy and Vehicles) Bill Committee: New Clause 4 1 Jul 2026
Energy Tax Transport
No
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