Melissa Joan Hart, the actress most well known for playing “Sabrina, the Teenage Witch,” told HuffPost Live that, because she tweeted her support of Mitt Romney, she was overwhelmed with hateful insults in 2012. “I got called every name in the book. And told I was, you know, they hope I die, and that they hope my children are gay which was, somehow, supposed to be some kind of punishment,” Hart said. …