The Republican Governors Association (RGA) began airing two TV ads today. The RGA says the ads, which discuss Gov. Jon Corzine's record on economic issues, "are the first step in a multi-week, paid media effort." An RGA spokesman says the ads are running statewide, but that they won't disclose the size of their media buy. That's usually code for "we didn't spend much, but we'd sure like to generate some earned media on this."