Adam Schiff said it's unclear whether Michael Flynn "really can add value to our investigation, whether we need him to learn information we can't learn from other sources." | Getty Schiff skeptical of Flynn's request for immunity

Rep. Adam Schiff, the ranking member of the House Intelligence Committee, said on Sunday he has a "very healthy skepticism" about whether it's worth granting immunity to Michael Flynn, President Donald Trump's former national security adviser, in exchange for his testimony.

Flynn has said he's willing to cooperate with the FBI and congressional investigations into Russian meddling in the 2016 election in exchange for immunity from prosecution. Trump publicly encouraged Flynn to do on Friday, tweeting that "Flynn should ask for immunity in that this is a witch hunt (excuse for big election loss), by media & Dems, of historic proportion!"


But Schiff, a California Democrat, said on CNN's "State of the Union" that it's unclear whether Flynn "really can add value to our investigation, whether we need him to learn information we can't learn from other sources."

"There is a lot we need to learn before entertaining anything like this," Schiff said.

Schiff also weighed in on Trump's tweet encouraging Flynn to strike a deal.

"I think he wanted to get across a message that he's not afraid of what Gen. Flynn has to say and basically daring the Congress to give him immunity," Schiff said.

"And then, if we make a judgment that, no, we shouldn't be giving him immunity, the president can say we don't want his story to come out. So, I think it was a strategic move by the president, and a pretty transparent one."