Trump tried to block Sally Yates from testifying tomorrow. #TrumpRussia

[L. Coyote]

23. NBC VIDEOS: Senators Looking Ahead to Sally Yates Testimony on Russia and Flynn

Looks like Blunt is covering for Pence!

Senators Looking Ahead to Sally Yates Testimony on Russia and Flynn

Revelations earlier this year that former National Security Adviser Michael Flynn was not telling the truth about his conversations with a Russian ambassador were concerning, Republican Senator Roy Blunt, a member of the Senate's Select Committee on Intelligence, acknowledged Sunday.

"What was particularly wrong was General Flynn not being truthful about the substance of what he said and the campaign was apparently, or the transition rather, was apparently concerned about that early on, and it appears they should have been," Blunt said in an interview on NBC's "Meet The Press" when asked about indications that the Trump transition itself was warned about Flynn's connections to Russia and conversations he had with the ambassador.

VIDEO: Sen. Blunt on Gen. Flynn: His Untruthfulness Was 'Wrong' 2:10

This Monday, Sally Yates, a former deputy attorney general under President Obama who was then pushed out by Trump early on, will testify in front of a Senate Judiciary subcommittee about Russia's attempts to interfere with the last election, and she is expected to speak about what she knew of conversations between Flynn and Russian Ambassador Sergey Kislyak.

Yates was fired in January, ostensibly for refusing to defend the administration's travel ban in court.

That Senate subcommittee is one of a number of investigations within Congress looking into Russian attempts to interfere in the 2016 elections, in addition to inquiries in the Senate and House Intelligence Committees.

Meanwhile, Sen. Dianne Feinstein, D-Calif., a member of the Senate's Select Committee on Intelligence, said on "Meet The Press" that Yates "apparently has some information as to who knew what when that she is willing to share. And that would be what she knew about Michael Flynn's connections to Russia and exactly what she knew they were."

"I don't want to, in any way, say that I know what she's going to say because I don't," Feinstein continued. "But there are so many questions here as to who knew what when, what was done with this."

VIDEO: Sen. Feinstein on What She Hopes to Hear From Sally Yates 2:15

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