The notion of carpet -crossing in a parliamentary democracy involves

The notion of carpet-crossing in a parliamentary democracy involves changing party allegiance after an election. It refers to when a member of parliament switches their loyalty from the political party they were elected under to another party. This is called carpet-crossing because in some countries, members of different parties sit on different colored carpets in the parliament building. It can be a controversial move, as it can shift the balance of power in the parliament and may be seen as a betrayal by the party and constituents that elected the MP.