Compare

Tristan Osborne vs Deirdre Costigan

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

Photograph of Tristan Osborne
Tristan Osborne
Lab Chatham and Aylesford
vs
Photograph of Deirdre Costigan
Deirdre Costigan
Lab Ealing Southall

Voting alignment

Tristan Osborne and Deirdre Costigan voted the same way 100% of the time, based on 419 shared comparable votes.

419 same votes 0 different votes 419 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
50 Aye 38 No
Tax 100% aligned 88 shared votes
50 Aye 38 No
28 Aye 24 No
Crime / Justice 100% aligned 52 shared votes
28 Aye 24 No
26 Aye 17 No
Education 100% aligned 43 shared votes
26 Aye 17 No
20 Aye 11 No
Housing 100% aligned 31 shared votes
20 Aye 11 No
17 Aye 4 No
Work / Employment 100% aligned 21 shared votes
17 Aye 4 No
Most different by topic
50 Aye 38 No
Tax 100% aligned 88 shared votes
50 Aye 38 No
28 Aye 24 No
Crime / Justice 100% aligned 52 shared votes
28 Aye 24 No
26 Aye 17 No
Education 100% aligned 43 shared votes
26 Aye 17 No
20 Aye 11 No
Housing 100% aligned 31 shared votes
20 Aye 11 No
17 Aye 4 No
Work / Employment 100% aligned 21 shared votes
17 Aye 4 No

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

Voting record

94.0 %
21 % above average
Rank 6 of 647
Participation
92.6 %
19 % above average
Rank 12 of 647
505
537 eligible divisions
Total votes
497
537 eligible divisions
263
52.1 % of votes cast
Aye votes
259
52.1 % of votes cast
242
47.9 % of votes cast
No votes
238
47.9 % of votes cast
1
0.2 % of votes cast
Against party
1
0.2 % of votes cast
1 years, 11 months
Since 4 Jul 2024
Commons service
1 years, 11 months
Since 4 Jul 2024

Debates

49
-14.6 vs Commons average
Rank 354 of 647
Appearances
26
-37.6 vs Commons average
Rank 540 of 647
60
-53.8 vs Commons average
Rank 415 of 647
Contributions
38
-75.8 vs Commons average
Rank 519 of 647

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

Financials and interests

£200,007
all imported IPSA years
Lifetime expenses
£196,485
all imported IPSA years
£200,007
12 % below average
Latest expenses
£196,485
13 % below average
1
1 registered category
Registered interests
0
0 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

Housing
31 of 31 votes
#1
Work / Employment
37 of 37 votes
Benefits
30 of 30 votes
#2
Housing
31 of 31 votes
Devolution / Local Government
24 of 24 votes
#3
Digital / Online Safety
11 of 11 votes
Defence
22 of 22 votes
#4
Migration
11 of 11 votes
Digital / Online Safety
11 of 11 votes
#5
NHS / Health
11 of 11 votes

Recent voting overlap

These MPs agreed on every division where both voted in the current comparison sample.

Where they voted the same
Aye
Draft Agriculture (Delinked Payments) (Reductions) (England) Regulations 2026 3 Jun 2026
Aye
No
Armed Forces Bill Committee: New Clause 13 2 Jun 2026
Defence
No
No
Armed Forces Bill Committee: New Clause 6 2 Jun 2026
Defence
No
No
Armed Forces Bill Committee: New Clause 5 2 Jun 2026
Defence
No
No
Armed Forces Bill Committee: New Clause 2 2 Jun 2026
Defence
No
No
Steel Industry (Nationalisation) Bill: Reasoned Amendment to Second Reading 21 May 2026
No
Aye
King's Speech Motion for an Address 20 May 2026
Aye
No
King's Speech Motion for an Address: amendment (p) 20 May 2026
No
No
King's Speech Motion for an Address: amendment (l) 20 May 2026
No
No
King's Speech Motion for an Address: amendment (o) 20 May 2026
No
Member source UK Parliament Members API
Voting source Commons Votes API