President Joe Biden sounded a defiant tone at a news conference Thursday evening, the key event in a monumental week for his campaign as he fends off calls for him to step aside as the party’s presumptive nominee. His big moment came on the last day of the NATO summit where he rounded on his critics. "I think I'm the most qualified person to run for president. I beat him once and I will beat him again," referring to his republican rival Donald Trump. Biden's stamina and effectiveness are under the microscope like never before and he's struggling to quell the Democratic Party's panic about his chances this November. #biden #presidentialelection2024