(CNN) - During a football game Sunday between the New Orleans Saints and the Carolina Panthers, Democrat Cedric Richmond aired his first television commercial of the general election, narrated by President Barack Obama.
"Cedric's always been there, making a difference for the community," President Obama says in the ad. "New Orleans needs Cedric Richmond in Congress and so do I."
Richmond, a Louisiana state representative, is challenging Republican Rep. Joseph Cao to represent Louisiana's 2nd district, which encompasses most of the city of New Orleans. Over 90 percent of the district's voters are registered Democrats.
The non-partisan Cook Political Report currently ranks the race as a "toss up." Another top non-partisan handicapper, the Rothenberg Political Report, rates the contest as "favored Democrat."
Rep. Cao, a freshman, made headlines as the only Republican to vote for the House version of the health care reform legislation after House Speaker Pelosi included anti-abortion language. He won the seat in 2008 after Democratic Rep. Bill Jefferson was indicted on bribery charges.