Peter Mandelson used to be a communist

Not a lot of people know that.

"He was educated at Hendon County Grammar School. In his youth, he briefly rebelled against his family's Labour tradition due to Labour's support of the USA in the Vietnam War and in 1971 left the Labour Party Young Socialists (LPYS) to join the Young Communist League, then the youth wing of the Communist Party of Great Britain. This move was partly a result of disagreements with the Trotskyist Militant tendency that had just won a majority in the LPYS nationally."