>> FBI Director, James Comey, headed to Capitol Hill, Monday, facing a high stakes grilling from the House Intelligence Committee on any links between Russia and Donald Trump's Presidential Campaign. Taking center stage, not only Moscow's alleged meddling aimed at helping him win but also Trump's yet unsubstantiated allegation he was wiretapped by former president Barack Obama.
>> We don't have any evidence that that took place.>> Committee chairman, Devin Nunes, a Trump ally, saying, he's seen no evidence supporting either allegation. But has tried to shift the focus to the classified leaks plaguing the White House, like the revelation of Russian contacts that sunk former National Security Advisor, Michael Flynn.
Nunez expecting to push Comey on those leaks. On the other side, ranking Democrat Adam Schiff will be pushing hard on the Russian narrative on Sunday's Meet the Press. Schiff saying, there is, quote, circumstantial evidence Trump's campaign colluded with Russia. Democrats also expected to prod Comey to refute Trump's wireapping claim.
>> I have nothing to do with Russia.>> Trump has denied he had contacts with Russia, but reports have detailed encounters between Russian officials and several members of his campaign team, including former campaign manager, Paul Manafort. Also testifying Monday, National Security Agency head, Admiral Mike Rogers. Comey has been under fire from across the political spectrum ever since the scandal surrounding Hillary Clinton's use of private email as Secretary of State rocked the 2016 election.
But the Russia allegations have raised the heat and how Comey handles himself could be pivotal both for him and the Trump White House.