sentences:  On 15 July 2006, John McDonnell became the first Labour MP to announce an intention to stand for the leadership when Blair resigned.On 5 September 2006, 17 Labour MPs signed a letter asking Blair to resign, accompanied by press reports alleging that up to 80 MPs were willing to sign.Later, senior party members stated that Tony Blair would not be Prime Minister at the next Labour Party conference and on 6 September, Tom Watson, one of the MPs who signed the letter, resigned as Junior Defence Minister along with seven Parliamentary Private Secretaries