The "gang of four" (Shirley Williams, David Owen, David Steel, and Roy Jenkins split from the Labour Party after releasing the "Limehouse Declaration" (following Foot's election as leader) at the party conference in 1983. These four figures went on to form a rival party, the Social Democratic Party (SDP). This split revealed the ideological tensions which were once again tearing the party asunder, as they had in the post-Attlee years, and meant voters lost confidence in Labour's ability to govern.