President Vladimir Putin's party won a huge majority in Russian parliamentary elections Sunday tainted by fraud allegations, early results showed, paving the way for the Kremlin leader to retain power after leaving office. The United Russia Party won 62.3 percent of the vote, according to official results with 12 percent of the ballots counted and with opposition complaints mounting. United Russia and its allies, A Just Russia and the Liberal Democratic Party would enter the State Duma with a collective 86.3 percent of the vote, according to an exit poll by the All-Russian Centre for the Study of Public Opinion....