The United Socialist Party (TUSP) was a British political organisation formed in 2004. The party was formed in Liverpool by a number of former Liverpool Dockers who had been active in the strike of 1995–1997. Other leftist groups such as the Revolutionary Democratic Group, WIRFI and International Socialist League became involved and the party experienced ideological and organisational conflicts – as the Socialist Labour Party had before it – between those seeking a more left-wing version of the Labour Party and those aiming to found a multi-tendency revolutionary party.