Gillard Government also polarised: approval ratings of Gillard and Abbott both improved following the speech. Julia Gillard mounted a leadership challenge against Kevin Rudd as leader of the Australian Labor Party and Prime Minister of Australia in June 2010. Rudd remained within the government, initially as a backbencher. Following the 2010 election, Gillard appointed Rudd as Foreign Minister in her minority government. The unusual circumstances of Rudd's replacement by his own party prior to completion of his first term in office, the subsequent circumstances of Labor operating without an outright Parliamentary majority, persistent two-party-preferred polling results favouring the Liberal-National opposition, and some
Julia Gillard conclusion of a criminal investigation. After a week of controversy, Gillard announced that she was asking Slipper to delay his return to the Chair pending the conclusion of concurrent civil proceedings, in an effort to dispel what she described as a "dark cloud" over her government (a reference also to the ongoing Craig Thomson affair involving a Labor MP linked to corruption allegations). In the light of poor polling results for the Gillard Government, speculation that Foreign Minister and former Prime Minister Kevin Rudd wished to challenge Gillard for the leadership culminated with Rudd resigning from the Cabinet on 22