We added eight ad checks this week, with conservative outside groups focusing their fire on the Nevada, Virginia and Ohio Senate races. Only two of them didn’t come from Crossroads GPS: an obscure group called the Treasure Coast Jobs Coalition lobbed tired Recovery Act claims at Rep. Allen West’s (R-FL) opponent, and the American Future Fund turned Paul Ryan’s Republican National Convention lie about a Wisconsin auto plant into a 60-second spot.

Crossroads GPS hit Rep. Shelley Berkley (D-NV) and Sen. Sherrod Brown (D-OH) with the standard misleading Medicare attacks (“Laughable” in Nevada and “Football” in Ohio), but got a bit more creative in Virginia. The group released two versions of an ad called “Teeth” that attacks Gov. Tim Kaine (D-VA) over education funding, and alleged in another that his support for the congressional debt ceiling deal meant he “supports cutting what matters: our jobs.” Karl Rove’s behemoth also launched two presidential ads, taking an Obama quote out of context in Nevada and scrambling to defend Mitt Romney’s tax plans in “Broke.”

Read more after the jump.