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Legislate for automatic by-elections when a standing MP decides to defect.

Submitted on Monday 26th January 2026

Rejected on Tuesday 17th February 2026

Current status: Rejected

Rejection code: duplicate (see below for details)

Petition Action

Legislate for automatic by-elections when a standing MP decides to defect.

Petition Details

Bring in legislation that will trigger an automatic by-election when a standing MP decides to defect from the party they represented when elected, to another political party during the life of that parliament.

Additional Information

MPs are elected based on the political party that they stand to represent at an election, and its policies. If they consequently decide they no longer agree with the policies of that political party and wish to defect to another, then there should automatically be a by-election to allow the people who voted for them, to decide whether or not they are still a suitable MP. Until that by-election they should continue to act for the party for which they were elected or stand down immediately.


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This petition was rejected

The Government e-Petitions Team gave the following reason:

There's already a petition about this issue. We cannot accept a new petition when we already have one about a very similar issue.

You are more likely to get action on this issue if you sign and share a single petition.

You may wish to sign the following petition, which calls for similar action:

By-elections to be called automatically when MPs defect to another party
petition.parliament.uk/petitions/737660

Have your say on this petition!

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