Rejected petition Prevent MP's from changing party during a Parliament without a bi-election.

Ensure that the practice of crossing the house stops so that MP's either continue to represent the party they were elected to by their constituents or they resign and stand in a bi election for their new chosen party.

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Constituents vote for prospective MP' on the basis of the party they stand for and or the policies of that individual and that party. If they change party clearly they no longer represent their constituents on the basis on which they were elected.

This petition was rejected

Why was this petition rejected?

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
https://petition.parliament.uk/petitions/737660

We only reject petitions that don’t meet the petition standards.

Date submitted 25 January 2026
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