“Most recently, Karl Rove’s Crossroads GPS group funded an ad spot attacking the Democratic Montana Senator Joe Tester. And it criticized him for being in favor of — you guessed it — farm dust.
Yeah, that never happened. The vote cited in the ad is actually legislation referring to currency manipulation abroad — it had nothing to do with farm dust, real or imagined. Apparently, this was such an egregious lie that the cable company running it decided to up and pull the ad off the airwaves. Which rarely, rarely happens — as evidenced by the prevalence of lie-filled political ads that do make it on the airwaves.” Source: Treehugger.com
The add has been pulled because it is untrue.