The Republicans just chose their Senate nominee in New Mexico, but Rep. Tom Udall (D) is on the air with his third television ad.

The Democratic nominee to replace retiring Sen. Pete Domenici (R-N.M.), Udall didn’t face primary opposition on June 3, but during the last three weeks of the primary campaign, he still ran a 60-second bio ad as well as a 30-second ad on improving veterans’ benefits.

Udall’s third ad focuses on the economy and alternative energy, and begins airing Wednesday statewide. “The George Bush economy is crushing America,” the ad begins, but it doesn’t mention his general election opponent. The Albuquerque media market covers more than 85 percent of New Mexico, but Udall has also been advertising in the Amarillo, Texas, and El Paso, Texas, markets, which reach some areas in his state.

Rep. Steve Pearce (R) aired plenty of ads in the bitter primary against his House colleague Heather Wilson (R), but he spent virtually all of his campaign money (almost $2 million) securing the nomination.

Udall starts the general election with a significant lead in the polls and the overall advantage in the race.