The Associated Press (AP) on Monday fact-checked a video of former President Barack Obama walking President Joe Biden off stage by citing one anonymous source who attended the event. The fact check comes after Biden’s aides became more quarrelsome with the media about coverage of Biden’s age, gaffes, and videos exposing moments of strange confusion. A video on Sunday showed Obama walking Biden off the stage after the president appeared to freeze. Another video appeared to show Biden wandering off into the distance in Europe before Italian Prime Minister Giorgia Meloni turned him back to the group of world leaders...