Compare

Dr Caroline Johnson vs Sir Iain Duncan Smith

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

Photograph of Dr Caroline Johnson
Dr Caroline Johnson
Con Sleaford and North Hykeham
vs
Photograph of Sir Iain Duncan Smith
Sir Iain Duncan Smith
Con Chingford and Woodford Green

Voting alignment

Dr Caroline Johnson and Sir Iain Duncan Smith voted the same way 98% of the time, based on 1,653 shared comparable votes.

1,622 same votes 31 different votes 1,653 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
89 Aye 70 No
Crime / Justice 100% aligned 159 shared votes
89 Aye 70 No
27 Aye 42 No
Foreign Affairs 100% aligned 69 shared votes
27 Aye 42 No
39 Aye 29 No
Transport 100% aligned 68 shared votes
39 Aye 29 No
21 Aye 34 No
Benefits 100% aligned 55 shared votes
21 Aye 34 No
24 Aye 30 No
Defence 100% aligned 54 shared votes
24 Aye 30 No
Most different by topic
18 Aye 12 No
NHS / Health 93% aligned 30 shared votes
16 Aye 14 No
33 Aye 40 No
Trade 95% aligned 73 shared votes
31 Aye 42 No
100 Aye 41 No
Migration 96% aligned 141 shared votes
96 Aye 45 No
77 Aye 125 No
Brexit / EU 97% aligned 202 shared votes
75 Aye 127 No
19 Aye 20 No
Energy 97% aligned 39 shared votes
18 Aye 21 No

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

Voting record

82.8%
10% above average
Rank 137 of 650
Participation
81.2%
9% above average
Rank 170 of 650
1,869
2,257 eligible divisions
Total votes
1,962
2,417 eligible divisions
911
48.7% of votes cast
Aye votes
898
45.8% of votes cast
958
51.3% of votes cast
No votes
1,064
54.2% of votes cast
10
0.5% of votes cast
Against party
41
2.1% of votes cast
9 years, 11 months
Since 8 Dec 2016
Commons service
34 years, 7 months
Since 9 Apr 1992

Debates

145
+50.5 vs Commons average
Rank 101 of 650
Appearances
98
+3.5 vs Commons average
Rank 232 of 650
436
+271.4 vs Commons average
Rank 35 of 650
Contributions
158
-6.6 vs Commons average
Rank 225 of 650

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

Financials and interests

£1,451,695
all imported IPSA years
Lifetime expenses
£2,530,064
all imported IPSA years
£229,187
1% above average
Latest expenses
£265,254
17% above average
4
4 registered categories
Registered interests
8
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
205 of 212 votes
#1
Brexit / EU
209 of 212 votes
Migration
154 of 164 votes
#2
Foreign Affairs
75 of 82 votes
Trade
85 of 92 votes
#3
Housing
60 of 67 votes
Foreign Affairs
75 of 82 votes
#4
Migration
153 of 171 votes
Devolution / Local Government
58 of 65 votes
#5
Crime / Justice
198 of 234 votes

Recent voting overlap

Where they voted differently
Aye rebel
Tobacco and Vapes Bill: Third Reading 26 Mar 2025
NHS / Health
No
Aye rebel
Tobacco and Vapes Bill: Second Reading 26 Nov 2024
NHS / Health
No
Aye
Energy Bill [Lords]: Third Reading 5 Sept 2023
Energy
No rebel
Aye
Illegal Migration Bill: motion to disagree with Lords Amendment 102B 17 Jul 2023
Migration
No rebel
Aye
Illegal Migration Bill: motion to disagree with Lords Amendment 56B 17 Jul 2023
Migration
No rebel
Aye
Illegal Migration Bill: motion to disagree with Lords Amendment 56 11 Jul 2023
Migration
No rebel
Aye
Illegal Migration Bill: Government Amendments (a) and (b) in lieu of Lords Amendments 31, 35 & 36 11 Jul 2023
Migration
No rebel
Aye
Draft Windsor Framework (Democratic Scrutiny) Regulations 2023 22 Mar 2023
No rebel
Aye
Nationality and Borders Bill: Motion to disagree with LA 26B 20 Apr 2022
Migration
No rebel
Aye
Health Protection (Entry to venues etc) SI No 1416 14 Dec 2021
No rebel
Where they voted the same
No
Budget Resolution No. 86: High value council tax surcharge 3 Nov 2026
Tax
No
No
Budget Resolution No. 76: Rates of alcohol duty 3 Nov 2026
Tax
No
No
Budget Resolution No. 15: Charges in connection with employment visas 3 Nov 2026
Tax
No
No
Budget Resolution No. 8: Capital gains tax (business asset disposal relief) 3 Nov 2026
Tax Transport
No
No
Budget Resolution No.7: Increase in rate of banking surcharge for temporary period 3 Nov 2026
Tax
No
No
Budget Resolution No. 3: Income tax (default, property and savings rates) 3 Nov 2026
Tax
No
No
Withdrawal Agreement (Windsor Framework and Governance) (Amendment) Regulations 2026 21 Oct 2026
Brexit / EU Foreign Affairs
No
No
Draft Railways (Interoperability in Northern Ireland) (Convention on International Carriage by Rail) (Amendment) Regulations 2026 21 Oct 2026
Transport
No
No
Draft Code of Practice on Access and Unfair Practices During the Recognition and Derecognition Process 21 Oct 2026
No
No
Northern Ireland Troubles Bill: Third Reading 20 Oct 2026
Foreign Affairs
No
Member source UK Parliament Members API
Voting source Commons Votes API