A rump party is a
political party that is formed by the remaining body of supporters and leaders who do not support a breakaway group who merge with or form another new party.
The rump party can have the name of the original party, or a new name.
The Rassemblement-UMP (Gathering-Union for a Popular Movement) is an ephemeral French legislative group, led by former Prime Minister
François Fillon, which split from the
Union for a Popular Movement on November 2012 after the internal contestation which followed the election of the party's president. Created on November 27, 2012, this dissident group has been reintegrated in the UMP's parlementary group after negotiations between the two rivals on January 16, 2013.[2][3]