President Trump on Thursday said the two witnesses in the televised impeachment hearing had a “blank look on their face” when asked about where the impeachable offense was in his call with Ukraine’s president.

“@RepRatcliffe asked the two ‘star’ witnesses, ‘where is the impeachable event in that call?’ Both stared straight ahead with a blank look on their face, remained silent, & were unable to answer the question,” the president said in a tweet.

“That would be the end of a case run by normal people! – but not Shifty!” he added, referring to House Intelligence Committee Chairman Adam Schiff.

Rep. John Ratcliffe (R-Texas), one of Trump’s fiercest defenders, questioning US ambassadors George Kent and William Taylor on the opening day of the public phase of the impeachment inquiry.

On Wednesday, Trump claimed not to have watched a minute of the hearing.

“I haven’t watched it, I haven’t watched for one minute,” the president said during a news conference in the East Room with Turkish President Recep Tayyip Erdogan as the hearing was taking place.

But he also said during one of two Oval Office meetings with reporters covering the Turkish leader’s visit: “I see they’re using lawyers that are television lawyers, they took some guys off television.”

Trump’s aides insisted he was busy working on other business.

“He’s not watching — he’s working,” White House spokesman Hogan Gidley told USA Today.