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Keir Mather vs Matthew Pennycook

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 Matthew Pennycook
Matthew Pennycook
Lab Greenwich and Woolwich

Voting alignment

Keir Mather and Matthew Pennycook voted the same way 100% of the time, based on 497 shared comparable votes.

497 same votes 0 different votes 497 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
44 Aye 36 No
Tax 100% aligned 80 shared votes
44 Aye 36 No
26 Aye 19 No
Crime / Justice 100% aligned 45 shared votes
26 Aye 19 No
30 Aye 13 No
Education 100% aligned 43 shared votes
30 Aye 13 No
9 Aye 23 No
Migration 100% aligned 32 shared votes
9 Aye 23 No
21 Aye 10 No
Work / Employment 100% aligned 31 shared votes
21 Aye 10 No
Most different by topic
44 Aye 36 No
Tax 100% aligned 80 shared votes
44 Aye 36 No
26 Aye 19 No
Crime / Justice 100% aligned 45 shared votes
26 Aye 19 No
30 Aye 13 No
Education 100% aligned 43 shared votes
30 Aye 13 No
9 Aye 23 No
Migration 100% aligned 32 shared votes
9 Aye 23 No
21 Aye 10 No
Work / Employment 100% aligned 31 shared votes
21 Aye 10 No

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

Voting record

75.6%
3% above average
Rank 296 of 649
Participation
82.2%
10% above average
Rank 153 of 649
602
796 eligible divisions
Total votes
1,954
2,376 eligible divisions
294
48.8% of votes cast
Aye votes
1,084
55.5% of votes cast
308
51.2% of votes cast
No votes
870
44.5% of votes cast
0
0.0% of votes cast
Against party
1
0.1% of votes cast
3 years, 2 months
Since 20 Jul 2023
Commons service
11 years, 4 months
Since 7 May 2015

Debates

103
+19.3 vs Commons average
Rank 160 of 649
Appearances
159
+75.3 vs Commons average
Rank 54 of 649
546
+400.1 vs Commons average
Rank 16 of 649
Contributions
670
+524.1 vs Commons average
Rank 9 of 649

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

Financials and interests

£451,152
all imported IPSA years
Lifetime expenses
£1,761,831
all imported IPSA years
£306,391
35% above average
Latest expenses
£216,649
4% below average
1
1 registered category
Registered interests
0
0 registered categories
0
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

Education
50 of 52 votes
#1
Foreign Affairs
65 of 69 votes
Democracy / Parliament
16 of 17 votes
#2
Housing
63 of 67 votes
Transport
31 of 33 votes
#3
Environment / Climate
45 of 48 votes
Benefits
27 of 31 votes
#4
Defence
65 of 71 votes
NHS / Health
12 of 14 votes
#5
Democracy / Parliament
43 of 47 votes

Recent voting overlap

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

Where they voted the same
Aye
Terminally Ill Adults (End of Life) Bill: Second Reading 11 Sept 2026
Aye
Aye
Closure motion 11 Sept 2026
Aye
No
Health Bill: Report Stage: New Clause 145 7 Sept 2026
No
No
Health Bill: Report Stage: New Clause 6 7 Sept 2026
No
Aye
Representation of the People Bill: Third Reading 2 Sept 2026
Democracy / Parliament
Aye
No
Representation of the People Bill: Report Stage: New Clause 88 2 Sept 2026
Democracy / Parliament
No
No
Representation of the People Bill: Report Stage: New Clause 67 2 Sept 2026
Democracy / Parliament
No
No
Representation of the People Bill: Report Stage: New Clause 65 2 Sept 2026
Democracy / Parliament
No
Aye
Immigration and Asylum Bill: Second Reading 13 Jul 2026
Migration
Aye
No
Immigration and Asylum Bill: Reasoned Amendment to Second Reading 13 Jul 2026
Migration
No
Member source UK Parliament Members API
Voting source Commons Votes API