Sir Gary Streeter started out in the SDP, defected to the Tories, was an aide to John Major after his general election defeat and was sacked by Iain Duncan Smith after telling him he was 'unelectable'.
He joins Matt for the latest episode of the Exit Interviews - our series talking to MPs leaving Parliament at the next election.
Plus columnists Rachel Sylvester and Iain Martin enter the 'no Boris zone' to discuss Labour's green energy promises, the SNP slumping in the polls, and has a mathematician invented a new swear word?
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