Sen. John McCain (R-AZ) said a bipartisan "select committee" must investigate alleged ties between the Trump campaign and Russia due to the many "unanswered questions" surrounding the issue.

Appearing on "America's Newsroom," McCain said there is now a partisan "schism" on the House Intelligence Committee, where Democrats are calling for Chairman Devin Nunes to step aside.

"I think it's reached a level where it requires a select committee. There's too many unanswered questions out there. It seems like every few days there's a new revelation of some kind," he said, pointing to a new report on Trump's former campaign chairman Paul Manafort's bank accounts in Cyprus. 

McCain said nothing will get accomplished unless it's done in a "bipartisan fashion," expressing confidence that the Senate Intelligence Committee's investigation is being conducted in that way. 

He said he does not believe the White House is trying to block the investigations, but added that Nunes should not have shared information with the White House before informing other committee members.

McCain said yesterday Nunes has "a lot of explaining to do" over his actions last week, calling on Nunes to reveal his source for information on "incidental" surveillance on the Trump team. 

Meantime, Rep. Walter Jones (R-NC) became the first Republican lawmaker to call on Nunes to recuse himself from the investigation.

Watch the full interview above.

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