Trump has ratcheted up his lying to a new high -- and he's told 171 in the last three days alone: fact checker
President Donald Trump during an interview on Fox Business. (Screenshot/YouTube)

President Donald Trump has started lying at an unprecedented pace -- and Washington Post fact checker Glenn Kessler told CNN on Monday that the president has now totaled more than 10,000 false or misleading claims through the course of his presidency.

This milestone is particularly remarkable, Kessler said, because Trump was at just 5,000 lies this past September -- which means he doubled his total in a span over the span of a mere seven months.

"That's an average of about 23 false or misleading claims a day in the last seven months," Kessler explained.

In fact, Trump rocketed past 10,000 lies over the span of a mere three days last week when he made a stunning 171 false claims in just three days. According to Kessler's breakdown, Trump made 45 bogus claims in his interview with Sean Hannity, 24 during his speech at the National Rifle Association, and a whopping 61 during his campaign rally on Saturday.

"That's more than he did in three days than he did in a single month in the first five months of his presidency," Kessler explained.

The release of special counsel Robert Mueller's report has given Trump a whole new avenue of lying, Kessler explained, as the president has repeatedly and falsely claimed that the report is a "total exoneration" of his actions.

Watch the video below.