President Donald Trump pumps his fist as he arrives aboard Air Force One at Louisville Air National Guard Base in Louisville, Ky., U.S. March 20, 2017.

A Wall Street Journal editorial is calling into question President Donald Trump's credibility by his insistence that former President Barack Obama wiretapped Trump Tower, despite near-universal doubt.

In a week that could have been smooth sailing for Trump, the Journal said the president instead, "clings to his assertion like a drunk to an empty gin bottle, rolling out his press spokesman to make more dubious claims."