Click here to watch "Fighter."

Louisiana Democrat Mary Landrieu is considered Republicans' best, and perhaps only, target for switching a Senate seat from the blue to the red column in November. Her opponent, state Treasurer John Kennedy, ran for Republican David Vitter's seat in 2004 as a Democrat but switched parties in 2006.

The two appear set for a fierce contest and both reported healthy fundraising totals in June, although Landrieu maintains a cash advantage of about $5.5 million on hand to Kennedy's $2.7 million. She is also leading in early polling, though by about 5 or 6 points, certainly leaving Kennedy within striking distance.

Landrieu unveiled her first TV ad of the cycle Wednesday, previewing her strategy for the contest: highlight the tangible results she has achieved for the state over her two terms in Washington.

"Fighter" (subscription) begins by telling how Landrieu won a contract for a Louisiana factory to build armored security vehicles, which were used by the military in Iraq and Afghanistan to protect soldiers from roadside bombs. "When production was threatened, Landrieu reached across party lines to get millions so this Louisiana factory could keep making these armored SVs," the announcer proclaims. "Our guys over there are safer today because she stood up," one man says, while a factory worker adds: "Mary Landrieu saved our jobs."

The factory example is used to demonstrate how Landrieu is "fighting and winning for Louisiana," and the rest of the spot enumerates other things she has done for Bayou State residents because of her stature and tenure in the Senate. The announcer says Landrieu was "rated one of the Senate's most effective members" and reiterates that "her seniority gets things done -- for better schools, law enforcement, health care for kids."

The Louisiana Senate race provides an interesting foil to the presidential contest, as Democrat Landrieu's message of experience and strength more closely resembles John McCain's campaign theme, while Kennedy, stumping on a platform of change, sounds more like Barack Obama on the trail.