Sen. McCain calls Michael Flynn's request for immunity 'unusual'

McCain acknowledged the request may fuel suspicions by the public.

“Well, I can only conclude that,” McCain said. “Now, other smart people who are lawyers ... say this is kind of a routine thing. Well, it may be. But it certainly is unusual from my experience.”

The Arizona Republican has repeatedly said that an independent panel is needed to investigate allegations of ties between Trump associates and Russia.

“I don't know if they’re true, I don't know if they’re false,” McCain said of the allegations. “I am making no judgment. I am just saying that they need to be thoroughly investigated, and we have reached a level where a select committee or even a commission is necessary.”