In the wake of the crushing defeat of the Liberal Party in the 2007 Australian federal election, the incumbent leader and deputy both stepped down from their roles. (Indeed, the leader, the now-former Prime Minister John Howard, had no option but to step down, having lost his seat in the election.) The thankless task of rebuilding the party (and its coalition partner, the National Party), went to relative unknowns Brendan Nelson and Julie Bishop.
Nelson did not prove equal to the task, lasting only a little more than ten months in the role and achieving some of the lowest approval numbers ever seen in Australian politics. Bishop, on the other hand, thrived in the role, and would remain deputy leader as leaders came and went until 2019.