[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/08/25/art.rncad.cnn.jpg caption="The RNC is out with a new ad starring Hillary Clinton."]
(CNN) - She's been the target of countless Republican attack ads, but it now appears Sen. Hillary Clinton is the GOP's new best friend.
On the heels of two McCain campaign commercials that feature the New York Democrat's repeated criticisms of Barack Obama during the Democratic presidential primary race, the Republican National Committee released a new ad Monday that asks, "Was she right?"
"Who has the experience to govern our nation," the ad's narrator asks before showing a clip of Hillary Clinton declaring in March, "Senator McCain will bring a lifetime of experience to the campaign, I will bring a lifetime
of experience, and Senator Obama will bring a speech he gave in 2002."
Those comments were criticized within the Democratic Party at the time, appearing to many that Clinton was endorsing McCain over Obama. The New York senator later said that was not the case.
"Barack Obama, he gives a great speech," the ad's narrator also says. "But now Americans must ask ourselves, 'Should we elect the most inexperienced candidate of our times,' or was she right?”
The ad, financed by the RNC's independent expenditure arm, is expected to run in key battleground states, including in Denver, Colorado - the site of the Democratic convention this week.
The Republicans' now seeming embrace of Hillary Clinton is a stark departure from its days of targeting the New York senator in countless television spots. Evan Tracey of TNS Media Intelligence/CMAG, CNN's consultant on television ad spending, reports since only January 1, 2007, nine thousand ads have aired using Clinton in a negative way on behalf of Republican candidates or issue groups at a cost of $7.2 million.