This is a new RNC ad. According to them, the ad is lighthearted and funny and so what if the featured speaker isn't really a disheartened 2008 Obama supporter but is a long-time RNC staffer? Why does that matter. It is, after all, an ad. It's not dishonest, so they say. Via TPM:
The RNC says its ad, which first appeared on television Thursday is not dishonest.
“It’s a lighthearted ad to show how millions of Americans feel about President Obama — he’s not the person we thought he was and it’s time to break up with him,” an RNC official told TPM. “But let’s be clear, it is an ad.”
Well, yeah. It is dishonest, because it presents a young Latina as someone who is disappointed and ready to vote for Romney, but really it's just a staffer reading a script and doesn't represent anyone I was able to find with similar attitudes, though I'm certain some are out there. And because there may be some out there, it seems to me the campaign should have maybe found one, or else put a disclaimer in their ad that actors/staffers portrayed the speakers.
An honest ad would have disclosed that the speaker wasn't really who they portrayed her to be. She was just reading a script.
So yes, RNC. Your ad is dishonest, not that it comes as a surprise. When you decided fact-checkers had no role in your campaign, you wrapped your arms around Mitt Romney's lying ways and gave it a big wet kiss.