Murdoch found a political ally in Sir John McEwen, leader of the Australian Country Party (now known as the National Party of Australia), who was governing in coalition with the larger Menzies-Holt-Gorton Liberal Party. From the very first issue of The Australian Murdoch began taking McEwen's side in every issue that divided the long-serving coalition partners. (The Australian, 15 July 1964, first edition, front page: "Strain in Cabinet, Liberal-CP row flares.") It was an issue that threatened to split the coalition government and open the way for the stronger Australian Labor Party to dominate Australian politics. It was the beginning of a long campaign that served McEwen well.  After McEwen and Menzies retired, Murdoch threw his growing power behind the Australian Labor Party under the leadership of Gough Whitlam and duly saw it elected on a social platform that included universal free health care, free education for all Australians to tertiary level, recognition of the People's Republic of China, and public ownership of Australia's oil, gas and mineral resources. Rupert Murdoch's backing of Whitlam turned out to be brief. Murdoch had already started his short-lived National Star newspaper in America, and was seeking to strengthen his political contacts there.  Asked about the Australian federal election, 2007 at News Corporation's annual general meeting in New York on 19 October 2007, its chairman Rupert Murdoch said, "I am not commenting on anything to do with Australian politics. I'm sorry. I always get into trouble when I do that." Pressed as to whether he believed Prime Minister John Howard should continue as prime minister, he said: "I have nothing further to say. I'm sorry. Read our editorials in the papers. It'll be the journalists who decide that - the editors." In 2009, in response to accusations by Australian Prime Minister Kevin Rudd that News Limited was running vendettas against him and his government, Murdoch opined that Rudd was "oversensitive". Murdoch described Howard's successor, Labor Party Prime Minister Kevin Rudd, as "...more ambitious to lead the world [in tackling climate change] than to lead Australia..." and criticised Rudd's expansionary fiscal policies in the wake of the financial crisis of 2008 as unnecessary. Although News Limited's interests are extensive, also including the Daily Telegraph, the Courier-Mail and the Adelaide Advertiser, it was suggested by the commentator Mungo MacCallum in The Monthly that "the anti-Rudd push, if coordinated at all, was almost certainly locally driven" as opposed to being directed by Murdoch, who also took a different position from local editors on such matters as climate change and stimulus packages to combat the financial crisis.  Murdoch is a supporter of an Australian republic, having campaigned for one during the 1999 referendum.

Answer this question "What did Murdoch do after growing power behind Australian Labor Party?" by extracting the answer from the text above.
Murdoch had already started his short-lived National Star newspaper in America, and was seeking to strengthen his political contacts there.