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Automatically Trigger a by-election if an MP defects to another political party

Submitted on Wednesday 1st October 2025

Rejected on Friday 24th October 2025

Current status: Rejected

Rejection code: duplicate (see below for details)

Petition Action

Automatically Trigger a by-election if an MP defects to another political party

Petition Details

Our democracy relies on voting for a political party based on their Manifesto within constituency seats. If an elected MP decides to defect to another party then the reason they were voted in becomes Null & Void

Additional Information

I want any MP that leaves the current party they were elected to represent to automatically vacate that parliamentary seat and have to re-stand for their "new" party in that seat. We don't vote for personalities we vote for policies based on the party in question manifesto. If an MP moves party between elections they are going against the will of the voters in that constituency. I feel allowing MPs to freely jump ship with no due process or accountabilty makes a mockery of our democratic process


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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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