 Former Nebraska Senator Bob Kerry adds that it's unlikely that there's enough time for President Biden to change the trajectory of the race. Donald Trump, meanwhile, returned to the campaign trail last night with a rally in Miami, repeatedly teasing but not officially announcing that Florida Senator Mark Rubio could be Trump's choice for running mate. Rubio also spoke at the rally just before Trump took the stage, questioning President Biden's health and claiming the White House is covering up the president's true condition.