FBI head confirms Russia election probe, says Moscow backed Trump

By Patricia Zengerle and Warren StrobelWASHINGTON (Reuters) - FBI Director James Comey on Monday confirmed for the first time that the bureau is investigating possible ties between Republican Donald Trump's presidential campaign and Russia as Moscow sought to influence the 2016 U.S. election.Comey and Admiral Mike Rogers, the director of the National Security Agency, made clear that their investigation of Moscow and November's U.S. elections could last for months.Appearing before a congressional