On 8 July 2013, then Prime Minister Kevin Rudd announced proposed changes to the way in which the Australian Labor Party elects its leader. The changes included votes by the party membership and votes by the Federal Parliamentary Labor Party (FPLP), weighted at 50% each, and processes for when and how a leader can be challenged and the amount of Caucus support needed to mount a challenge to the leader. The special meeting of Caucus on 22 July 2013 endorsed the proposals but agreed that a petition challenging the leader should require 60% Caucus support rather than the 75% proposed by Rudd. It was also agreed that, in the period between the federal election and the ALP election of its leader, the deputy leader or the highest ranked House of Representatives member would act as leader.