Organizing For America, a project of the Democratic National Committee, is airing ads on cable praising Congressman Martin Heinrich, D-Albuquerque, for his work on health care reform, The Hill reports.

Heinrich, who lists the public option as one of his “principles for health care reform” on his Web site, so far has drawn Republican Jon Barela as a challenger.

“There is one thing that is not in dispute,” the ad says, “Congressman Martin Heinrich is fighting for us and working to fix our health care system.”

In addition to Heinrich, Organizing for America will air ads in defense of Reps. Ben Chandler, D-Ky., Travis Childers, D-Miss., and Zack Space, D-Ohio.

The other Democrats are in significantly more conservative districts; Heinrich’s 1st Congressional District is the only district out of the four with a Democratic Cook Partisan Voting Index number (a number based election results for the previous two presidential election cycles).

In fact, the other three are Blue Dog Democrats.

While the ads for Heinrich and Space are on the subject of health care reform, the subject of the ads on Chandler and Childers are on the stimulus package.

Here is the ad for Heinrich: