After praising Andrew Jackson in a Monday interview with the Washington Examiner, President Donald Trump on Monday night repeated his claim that Jackson could have prevented the Civil War.

President Andrew Jackson, who died 16 years before the Civil War started, saw it coming and was angry. Would never have let it happen! — Donald J. Trump (@realDonaldTrump) May 2, 2017

Trump made to sure to mention that Jackson died years before the Civil War began, perhaps because it was unclear from his initial comments that he knew Jackson was no longer alive when the Civil War began.

“Had Andrew Jackson been a little later, you wouldn’t have had the Civil War,” Trump told the Washington Examiner earlier on Monday. “He was a very tough person, but he had a big heart.”

“He was really angry that he saw what was happening with regard to the Civil War, he said, ‘There’s no reason for this,’” Trump added. “People don’t realize, you know, the Civil War, you think about it, why? People don’t ask that question, but why was there the Civil War? Why could that one not have been worked out?”