President Joe Biden's press conference on Thursday offers him a fresh opportunity to try to prove to the American public that he’s capable of serving another four years after his big debate flop threw the future of his presidency into doubt. But Biden is not known as a master of the big rhetorical moment and his recent cleanup efforts have proved inadequate. The president will close out the NATO summit in Washington with a rare solo press conference as he's struggling to quell the Democratic Party’s panic about his chances this November.
