Manafort worked as an adviser on the Ukrainian presidential campaign of Yanukovych (and his Party of Regions during the same time span) from December 2004 until the February 2010 Ukrainian presidential election, even as the U.S. government (and U.S. Senator John McCain) opposed Yanukovych because of his ties to Russia's leader Vladimir Putin. Manafort was hired to advise Yanukovych months after massive street demonstrations known as the Orange Revolution overturned Yanukovych's victory in the 2004 presidential race. Borys Kolesnikov, Yanukovych's campaign manager, said the party hired Manafort after identifying organizational and other problems in the 2004 elections, in which it was advised by Russian strategists. Manafort rebuffed U.S. Ambassador William B. Taylor Jr. when the latter complained he was undermining U.S. interests in Ukraine. According to a 2008 U.S. Justice Department annual report, Manafort's company received $63,750 from Yanukovych's Party of Regions over a six-month period ending on March 31, 2008, for consulting services. In the 2010 election, Yanukovych managed to pull off a narrow win over Prime Minister Yulia Tymoshenko, a leader of the 2004 demonstrations. Yanukovych owed his comeback in Ukraine's presidential election to a drastic makeover of his political persona, and—people in his party say—that makeover was engineered in part by his American consultant, Manafort.