[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/02/02/art.lowden.ad.youtube.jpg caption="Sue Lowden is up with her first ad of the 2010 capaign."](CNN) - Sue Lowden, one of Senate Majority Leader Harry Reid's top Republican challengers, is up with her first ad of the 2010 campaign.
The 30-second spot is all biographical and describes Lowden, a former state senator and onetime television news anchor, as a "conservative" fighting for "lower taxes, less spending."
Lowden's ad - titled "Leading With Integrity" - features no shots at Reid, who trails both Lowden and another Republican frontrunner, Danny Tarkanian, by roughly 10 points, according to recent polling.
"We made the decision based on the fact that many Nevadans haven't yet gotten to know Sue Lowden," said Lowden's campaign manager Robert Uithoven. "Nevada voters already have their mind made up on Reid."
Uithoven told CNN the campaign is spending over $125,000 to air the ad in Nevada's two major media markets, Las Vegas and Reno.
Reid began airing ads late last year as his poll numbers began to tumble.