President Joe Biden and former President Donald Trump, the presumptive Democratic and Republican presidential nominees, shared a debate stage June 27 for the first time since 2020, in a confrontation that — because of strict debate rules — managed to avoid the near-constant interruptions that marred their previous encounters. Biden, who spoke in a raspy voice and often struggled to articulate his arguments, said at one point that his administration “finally beat Medicare.” Trump, meanwhile, repeated numerous falsehoods, including that Democrats want doctors to be able to abort babies after bir…