Sen. John McCain was on Jake Tapper’s show this morning calling on President Trump to put up or shut up regarding Trump’s claims last weekend about Obama wiretapping him:

Sen. John McCain said Sunday that President Donald Trump should either retract or substantiate his claim that President Barack Obama wire-tapped him in the final weeks of the presidential campaign and added he expects more to come on Russia’s meddling in the US election. McCain said on CNN’s “State of the Union” that he had “no reason to believe” Trump’s allegation, which the President has not supported with any evidence and which a White House official said was prompted by a Breitbart article. “I have no reason to believe that the charge is true, but I also believe that the President of the United States could clear this up in a minute,” McCain told anchor Jake Tapper. “All he has to do is pick up the phone, call the director of the CIA, director of national intelligence and say, ‘OK, what happened?'”

I have said from the beginning that it was my view that Trump fired off a series of tweets with no special knowledge, based on a resurrection of months-old news stories that said, not that Trump or his aides or residence had been targeted by wiretaps, but that aides had been captured on wiretaps — most likely wiretaps targeting Russians. I have seen nothing to change that conclusion, and much since to bolster it. We don’t know what Obama did or didn’t do, but Trump had no secret knowledge. It was just Trump popping off the way he does.

Here’s the video of McCain.

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