Compare

Sir Keir Starmer vs Sir Iain Duncan Smith

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

Voting alignment

Sir Keir Starmer and Sir Iain Duncan Smith voted the same way 5% of the time, based on 783 shared comparable votes.

39 same votes 744 different votes 783 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 2 No
Digital / Online Safety 13% aligned 8 shared votes
3 Aye 5 No
5 Aye 4 No
Energy 11% aligned 9 shared votes
5 Aye 4 No
8 Aye 1 No
NHS / Health 11% aligned 9 shared votes
2 Aye 7 No
20 Aye 26 No
Trade 9% aligned 46 shared votes
24 Aye 22 No
3 Aye 9 No
Housing 8% aligned 12 shared votes
10 Aye 2 No
Most different by topic
21 Aye 38 No
Migration 0% aligned 59 shared votes
38 Aye 21 No
20 Aye 19 No
Transport 0% aligned 39 shared votes
19 Aye 20 No
19 Aye 14 No
Foreign Affairs 0% aligned 33 shared votes
14 Aye 19 No
17 Aye 4 No
Education 0% aligned 21 shared votes
4 Aye 17 No
5 Aye 15 No
Environment / Climate 0% aligned 20 shared votes
15 Aye 5 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
81.6 %
8 % above average
Rank 176 of 647
893
2,323 eligible divisions
Total votes
1,895
2,323 eligible divisions
545
61.0 % of votes cast
Aye votes
865
45.6 % of votes cast
348
39.0 % of votes cast
No votes
1,030
54.4 % of votes cast
2
0.2 % of votes cast
Against party
41
2.2 % of votes cast
11 years, 1 months
Since 7 May 2015
Commons service
34 years, 2 months
Since 9 Apr 1992

Debates

44
-19.7 vs Commons average
Rank 401 of 647
Appearances
83
+19.3 vs Commons average
Rank 148 of 647
1,405
+1291.2 vs Commons average
Rank 2 of 647
Contributions
149
+35.2 vs Commons average
Rank 132 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
£2,530,064
all imported IPSA years
£232,065
3 % above average
Latest expenses
£265,254
17 % above average
15
3 registered categories
Registered interests
11
3 registered categories
1
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

Brexit / EU
161 of 211 votes
#1
Brexit / EU
208 of 211 votes
Trade
51 of 88 votes
#2
Foreign Affairs
63 of 69 votes
Environment / Climate
25 of 45 votes
#3
Housing
60 of 66 votes
Foreign Affairs
37 of 69 votes
#4
Migration
152 of 169 votes
Transport
42 of 91 votes
#5
Crime / Justice
197 of 229 votes

Recent voting overlap

Where they voted differently
No
King's Speech Motion for an Address: amendment (i) 19 May 2026
Aye
No
Privilege 28 Apr 2026
Aye
Aye
English Devolution and Community Empowerment Bill: Amendments (a) to (h) in lieu of Lords Amendments 85 and 86, 97 to 116, 120, 121 and 123 27 Apr 2026
Devolution / Local Government
No
Aye
English Devolution and Community Empowerment Bill: motion to disagree with Lords Amendments 94B and 94C 27 Apr 2026
Devolution / Local Government
No
Aye
English Devolution and Community Empowerment Bill: motion to disagree with Lords Amendments 36, 90 and 155, insist on Amendments 155A to 155F and propose Amendment (a) 27 Apr 2026
Devolution / Local Government
No
Aye
English Devolution and Community Empowerment Bill: motion to disagree with Lords Amendments 89B and 89C 27 Apr 2026
Devolution / Local Government
No
Aye
Draft Employment Rights Act 2025 (Investigatory Powers) (Consequential Amendments) Regulations 2026 18 Mar 2026
Crime / Justice Digital / Online Safety Work / Employment
No
Aye
Courts and Tribunals Bill: Second Reading 10 Mar 2026
Crime / Justice
No
No
Courts and Tribunals Bill: Reasoned Amendment to Second Reading 10 Mar 2026
Crime / Justice
Aye
Aye
Budget Resolution No. 50: Inheritance tax (limiting agricultural and business property reliefs etc) 2 Dec 2025
Tax Transport
No
Where they voted the same
No
Motion to sit in private 21 Feb 2024
Tax
No
Aye
Draft Equality Act 2010 (Amendment) Regulations 2023 13 Dec 2023
Aye
No
Motion to sit in private 16 Jan 2023
Tax
No
Aye
Health Regulations (Face Coverings) SI No 1400 14 Dec 2021
Aye
Aye
Adjournment (Conference, November and Christmas) 23 Jun 2021
Aye
Aye
Proceedings during the pandemic 16 Jun 2021
Aye
No
Fire Safety Bill: motion to disagree with Lords Amendment 4L 28 Apr 2021
No
No
Fire Safety Bill: motion to disagree with Lords Amendment 4J 27 Apr 2021
No
No
Trade Bill: motion to insist on Amendments 3C and 3D and disagree to Lords Amendment 3E 22 Mar 2021
Trade
No
Aye
Trade Bill: Amendment (a) to the motion to insist on Amendments 3C and 3D and disagree with Lords Amendment 3E 22 Mar 2021
Trade
Aye
Member source UK Parliament Members API
Voting source Commons Votes API