Labour MP says he would rather the shadow education secretary "resign his post as a lecturer than cross a picket line of striking lecturers".
The former election co-ordinator's call for an early EU referendum highlights the danger of Labour replicating Tory divisions over Europe.
The chatter in the party has been that Watson runs around the country making sure 'his' people get chosen as candidates.
Read the full text of the Labour MP's resignation letter to Ed Miliband.
Tom Watson and Chris Bryant suggest that Murdoch could be charged with perverting the course of justice.
As big a question for Ed Miliband as the matter of who delivers Labour’s economic message is the question of who will run the party’s general election campaign.
Labour MP says inquiry into allegations involving a senior Conservative politician is "the next stage of a cover-up".