Some analysts have linked Mitt Romney’s surging popularity in Florida to the influx of pro-Romney TV spots airing in the state. According to Politico, Romney and pro-Romney super PACs have paid for almost 13,000 television ads, as of last week. Newt Gingrich and pro-Gingrich super PACs have only aired about 200 spots. Rick Santorum and Ron Paul did not air any ads in the expensive Florida TV markets. This comes as a new study by the Wesleyan Media Project has found that outside group spending on political ads is up 1,600 percent in the Republican primary compared to four years ago. Nearly half of the ads on the airwaves this cycle were paid for by super PACs, which can receive unlimited donations.