The wife of retiring Rep. Dennis Moore (D-Kan.) won the Democratic primary Tuesday in the race to fill his seat in Congress. 

The Associated Press called the race with just 6 percent of precincts reporting. Moore led challenger Thomas Scherer 83 percent to 18 percent. 

Moore, a registered nurse, decided to make a bid for the seat last spring, shortly after her husband announced his retirement.

Unlike Kansas's 1st and 4th Congressional Districts, where Republican Reps. Jerry Moran and Todd Tiahrt are leaving behind heavily GOP territory, the race in the 3rd district is rated as a toss-up this fall.

On the Republican side, state Rep. Kevin Yoder is currently leading a nine-person field, but that race has yet to be called. Yoder leads with 48 percent of the vote to Patricia Lightner's 35 percent. 

This November, Democrats are placing their hopes in the district's independent streak. The 3rd district voted for former President George W. Bush in 2000 and 2004, but went narrowly for President Obama two years ago.