The chairman of the House intelligence committee said Wednesday that the panel has found no evidence to substantiate President Donald Trump's claim his campaign headquarters was wiretapped on orders from President Barack Obama.

"We don't have any evidence that that took place," Rep. Devin Nunes, R-Calif., said in a press conference on Capitol Hill. "I don't believe, just in the last week of time, the people we've talked to, I don't believe there was an actual tap of Trump Tower."