Johnson replied with a question of his own, “Is the President expected to be an expert on all of the Supreme Court cases? I don’t think so.” The post Mike Johnson Brushes Off Trump’s ‘I Don’t Know’ About Upholding the Constitution Comment: He Isn’t ‘Expected to be an Expert’ first appeared on Mediaite.

As the Trump administration tests the limits of presidential power, here's a look at what the U.S. Constitution says.

"Trump on Jan. 20: 'I will faithfully execute the Office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States.' Trump today: 'I don't know,'" another person wrote.