Within a day of President Barack Obama announcing his support for same-sex marriage, his campaign released an ad chiding Republican rival Mitt Romney for opposing it. It’s true that Romney does not support gay marriage -- he reaffirmed that position the same day as Obama’s historic announcement. But the Obama campaign video claims that Romney would deny certain rights to gay partners, including the right to adopt children. The ad shows short clips of both candidates talking about gay marriage -- Obama saying he supports it, Romney saying he doesn’t -- then ...