BOSTON – Carole Simpson, a former ABC news anchor who is now a journalism professor at Emerson College, is on the hot seat after endorsing Hillary Clinton for president at a New Hampshire political rally. Simpson said she immediately regretted her actions and offered her resignation the day after the rally last month in Salem, N.H., but Emerson officials refused to accept it. “I know I made a mistake. It was definitely the wrong venue for my first foray into free speech,” Simpson told The Boston Globe in Monday’s editions. “But I’d really like to see her win. After being...