Burning passions over Donald Trump's presidency are taking a personal toll on both sides of the political divide. For Gayle McCormick, it is particularly wrenching: she has separated from her husband of 22 years. The retired California prison guard, a self-described "Democrat leaning toward socialist," was stunned when her husband casually mentioned during a lunch with friends last year that he planned to vote for Trump – a revelation she described as a "deal breaker." "It totally undid me that he could vote for Trump," said McCormick, 73, who had not thought of leaving the conservative Republican before but felt...