Sen. Mark BegichMark Peter BegichFormer Alaska senator jumps into governor race Overnight Energy: Trump directs Perry to stop coal plant closures | EPA spent ,560 on customized pens | EPA viewed postcard to Pruitt as a threat Perez creates advisory team for DNC transition MORE (D-Alaska) is out with a new radio ad attacking his opponents for opposing abortion rights, a play for female voters in the libertarian-leaning state.

"Dan Sullivan and Mead Treadwell both oppose a woman's right to choose. Instead, they think it's okay for the government and employers to intrude in our personal healthcare decisions," the ad's narrator says.

"Alaskans should be able to make decisions for themselves," Begich says in the ad.

The ad also attacks Sullivan, the GOP front-runner and former Bush administration official, and Treadwell, the state's lieutenant governor, for opposing an increase to the minimum wage and for the outside group spending that has come in to attack Begich.

It's unusual for red-state Democrats to go on the attack against their Republican opponents for opposing abortion. But Alaska has a strong libertarian streak and a long history of electing politicians who support abortion rights — including Republicans like Sen. Lisa Murkowski.