Conversation so far:
What happened in the 2005 leadership election for David Cameron's party?
Following the Labour victory in the May 2005 general election, Michael Howard announced his resignation as leader of the Conservative Party and set a lengthy timetable for the leadership election.
Why did Michael Howard resign?
At the 2005 general election, Howard's Conservative Party suffered a third consecutive defeat. Howard stated in a speech that he would not lead the party into the next general election.

Question: What else happened?
Self-contained rewrite: What else happened for David Cameron after Michael Howard resigned from leadership in 2005?