New York Times: “As President Trump turns 80 on Sunday, he is so intent on projecting an image of relentless energy that he has installed a massive, mixed martial arts octagon on the South Lawn to mark the occasion. After watching the fight, Mr. Trump will depart Washington in the middle of the night and cross an ocean for a diplomatic summit in France. It is a schedule that seems devised to ward off questions about age and stamina as he begins his ninth decade.”“But even for a president known for imposing his own reality on every situation, Mr. Trump is facing scrutiny over his age that has grown more intense with each passing year.”Aaron Blake: Trump’s UFC 80th birthday bash looks to rescue his tarnished macho image.David Smith: As Donald Trump turns 80, he faces a foe he can never defeat: Father Time. That’s a problem for us all.