The committee, with LoBiondo, also chairman of the House CIA Subcommittee, is investigating Russian hacking that intelligence officials said could have influenced the election.
He then questioned why Congress was not investigating the Clinton campaign's alleged ties to Russian Federation.
Himes asked about that as well - Rogers said he didn't want to comment on the tweet, though he did say, "I assume the comment is created to address the leaking of such information".
In a moment of real-time fact-checking, the Federal Bureau of Investigation director made clear that was not a declaration he had made.
Neither Rogers nor Comey has spoken publicly about the president's allegation.
But the hearing could become heated as Republicans balance support for their party's leaders and Democrats vent frustration over Republican congressional leaders' refusal to appoint a special prosecutor or select committee to investigate.
The hearing features FBI Director James Comey, who will testify with Michael Rogers, the director of the National Security Agency.
Both Trump's fellow Republicans as well as Democrats in Congress said they were frustrated by what they consider the intelligence community's failure to provide enough information about any contacts with Russian Federation, as well as Trump's claim, made without evidence, that his predecessor, Democrat Barack Obama, ordered a wiretap of Trump Tower.
In the first tweet, the @POTUS account said that "Comey refuses to deny he briefed President Obama on calls made by Michael Flynn to Russian Federation".
But Comey neither confirmed nor denied discussing briefings with the president, and instead said, "I can't answer that", as the video that @POTUS shared shows. Director Comey's testimony put the last nail into President Trump's mendacious wiretapping claims. But he said that other forms of surveillance of Trump and his associates have not been ruled out. "We have been closely monitoring Russia's aggressions for years", Nunes said. It's a lesson Trump didn't have to learn on the campaign trail, but being president means your words have more weight.
Flynn later admitted talking to the ambassador about United States relations with Russia just as the Obama administration was slapping punitive new sanctions and expelling three dozen Russian officials over the election interference.
Trump, who recently accused President Barack Obama of wiretapping his NY skyscraper during the campaign, took to Twitter before the hearing began, accusing Democrats of making up allegations about his campaign associates' contact with Russian Federation during the election. More importantly, and for the purposes of our investigation, it simply does not matter.
On March 4, Trump said former President Barack Obama was behind wiretapping allegations in a series of Twitter posts.
Trump didn't provide any evidence alongside his claims, but Newsmax CEO Chris Ruddy said the new prez is "very confident" he will be proven right. "Big advantage in Electoral College & lost!"
GOP lawmakers decrying leaks have knowingly leaked classified information White House tweet appears to suggest Obama could be behind Flynn leaks The Hill's 12:30 Report MORE (R-S.C.) asking Comey whether he had briefed Obama on the Flynn calls. "Must find leaker now!"