Article continues below advertisementAs rumors of his declining health continue to mount, President Donald Trump repeated his claim that his former White House physician, Texas congressman Ronny Jackson (R), declared him the "healthiest" president in history. At a St. Patrick's Day event on Tuesday, March 17, Trump, 79, said that Jackson told him he was "by far the healthiest" of the former presidents, compared to Barack Obama, 64 and Joe Biden, 83.Trump has frequently quoted Jackson, who joined the White House Medical Unit in 2006 during George W.