Newt Gingrich has rolled out a new TV ad in South Carolina, attacking Mitt Romney on abortion:

“What happened after Massachusetts moderate Mitt Romney changed his position from pro-abortion to pro-life?” the female announcer says. “He governed pro-abortion.

“Romney appointed a pro-abortion judge; expanded access to abortion pills; put Planned Parenthood on a state medical board — but failed to put a pro-life group on the same board. And Romney signed government-mandated healthcare — with taxpayer-funded abortions.

“Massachusetts moderate Mitt Romney: He can’t be trusted.”