Rejected petition Require a By-Election When an MP Changes Party Affiliation

Require that any MP who leaves the political party they were elected under must trigger an automatic by-election. Voters should not be represented by someone who no longer aligns with the party they originally supported at the ballot box.

More details

Many voters cast their vote based on a party’s values, manifesto, and leadership — not solely the individual candidate. When an MP changes party or becomes independent mid-term, the political mandate given by their constituents is undermined.

This ensures accountability, maintains public trust, and respects the democratic process. A change of political alignment should be validated by the people who elected that representative.

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 this petition which calls for the same action:

Require AUTOMATIC by election if an MP changes party during a term of office
https://petition.parliament.uk/petitions/711480

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

Date submitted 10 July 2025
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