Article continues below advertisementCNN's Jake Tapper admitted to dropping the ball on properly covering former President Joe Biden's decline, citing it as the reason he's now reporting on Donald Trump's health "all the time." During the Monday, December 15, episode of "Pod Save America," the journalist told former Barack Obama spokesman Tommy Vietor, "We saw what happened with Biden, and while we covered it, we didn't ask as many questions as we should have at the time.