The Susan B. Anthony List, an anti-abortion group, announced its first House endorsements of the cycle, getting behind Rep. Steve King (R-Iowa) as well as three women in open, Republican-leaning seats.

King faces a potentially tough challenge from former Iowa first lady Christie Vilsack (D), who has the support of many liberal organizations including EMILY's List, a group that backs pro-abortion rights Democratic women.

The other three candidates are women in competitive Republican primaries in GOP-leaning districts: Jackie Walorski (R) is running for the seat Rep. Joe Donnelly (D-Ind.) is vacating, while former Ambassador Ann Wagner (R) is facing off against a Tea Party favorite in a suburban St. Louis seat. North Dakota State Rep. Bette Grande (R) is running in a crowded Republican primary for the open at-large seat in the state.

"The Susan B. Anthony List Candidate Fund is excited about our first round of candidate endorsements for the 2012 elections," said the group's President Marjorie Dannenfelser.  "The shift last election cycle in numbers from pro-abortion to pro-life women was historic and no accident. The corrective moment for the women’s movement must continue next year, and we will be working to ensure that it does."