 Both the former and current president are calling on Americans to unite and turn down the heat following Saturday's shooting. Former President Donald Trump called for unity and resilience after the attempt on his life injected fresh uncertainty into an already tumultuous presidential campaign, while President Joe Biden implored Americans to cool it down in the final stretch and resolve our differences at the ballot box. The president spoke in a primetime address from the White House. We may disagree. We are not enemies.