Former President Donald Trump announced Friday that if he won a second term, he would invoke the Alien Enemies Act of 1798 under a program he has dubbed “Operation Aurora” to deport immigrant gang members. Trump, who is campaigning in Aurora, Colorado, said that the operation would “expedite the removal of these savage gangs” and called “for the death penalty for any migrant that kills an American citizen or a law enforcement officer.” The rally, while not in a state that is one of the seven...