Graham Platner, the insurgent Democratic candidate for U.S. Senate in Maine, held his first major campaign rally on Friday night as reports continue emerging about his history with women. Last weekend, his campaign wrestled with stories about sexually explicit messages that Platner sent to several women while he was married. Then on Thursday, The New York Times reported about his relationships with previous girlfriends. Some viewed him positively but others described him as volatile and insulting. One woman said Platner twisted her arm during an argument and locked her in a room. Platner called that allegation untrue. “When politically motivated,...