text:  President Biden returns to the campaign trail for the first time since the attempted assassination of his Republican rival, former President Donald Trump. He's aiming to sharpen the choice voters will face this November in the wake of the attack. Biden will speak today at the NAACP convention in Las Vegas, aiming to showcase his administration's support for black voters who are a tentpole of the Democratic coalition. It's all counter-programming to Trump and the Republican National Convention now underway in Milwaukee.