A former adviser to Donald Trump chastised the president for saying “things that are false,” but refused to call them lies.

In an interview with Al Jazeera’s “Head to Head,” Stephen Moore, a Trump campaign adviser in 2016 who later worked with the White House, admitted that the president doesn’t always tell the truth.

“I think when Trump says things that are false, that does undermine his presidential authority and I wish he wouldn’t do it,” Moore said. “He should stop saying things that are untrue.”

Yet Moore, who was tapped by Trump for a seat on the Federal Reserve Board earlier this year but withdrew his nomination after fierce bipartisan opposition, wouldn’t use the “L” word.

“So he’s a liar?” host Mehdi Hasan asked.

“I’m never going to say that,” Moore said. He called Trump an “exaggerator” instead.

Hasan offered some quick examples of Trump lies that weren’t exaggerations. Moore just threw up a hand and said: “I don’t know about that.”

Although The Washington Post has documented more than 12,000 false or misleading claims by Trump since he took office, many of the people working with the president won’t acknowledge a single one of them.