WASHINGTON—U.S. President Donald Trump seemed to have a grand old time with Japanese Prime Minister Shinzo Abe last week during their two days at his Mar-a-Lago club in Florida.

He was also consistently dishonest in Abe’s presence.

Trump made 15 false claims while standing or sitting beside Abe. He was inaccurate not only at their joint press conference, at which he made 11 false claims, but at lunch and at dinner.

Trump made 33 false claims in total last week, bouncing back from an unusually slow week two weeks prior, when he had a mere 19 false claims.

He is now up to 1,486 false claims over the first 458 days of his presidency, an average of 3.2 per day.

If Trump is a serial liar, why call this a list of “false claims,” not lies? The answer is that we can’t be sure that each and every one was intentional. In some cases, he may have been confused or ignorant. What we know, objectively, is that he was not telling the truth.

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