News Wrap: Barr thinks spying on Trump campaign 'did occur'

In our news wrap Wednesday, Attorney General William Barr revealed during congressional testimony that he believes U.S. intelligence agencies spied on President Trump’s 2016 campaign. He also said he’s reviewing how the counterintelligence investigation into Russian collusion began. Meanwhile, the president again insisted that he can’t release his tax returns, saying he is under audit by the IRS.