May 29, 2026 / 11:38 PM EDT / CBS News Add CBS News on Google President Trump's physician said in a letter released late Friday that the president is in "excellent health," following a physical earlier this week at Walter Reed National Military Hospital. The president's visit to Walter Reed on Tuesday was his third known checkup at the military hospital since returning to the White House. Describing it as a semi-annual physical, Mr. Trump said on social media everything "checked out PERFECTLY," but the White House did not release a detailed summary  until Friday. Friday's letter from Capt. Sean Barbabella, a Navy captain who serves as physician to the president, said Mr.…