By Josh Lederman - 12/12/11 08:34 PM EST
President Obama and Sen. Ben Nelson (D-Neb.) are about to become the latest targets in a barrage of television attacks ads emanating from Crossroads GPS, a conservative outside group formed by former Bush Karl Rove.
Ads knocking Obama over his administration's efforts to bolster Solyndra, a failed solar energy company that has become a White House headache, will start airing nationwide on Monday night, the group announced. Crossroads has spent $500,000 to buy time on cable networks.
Crossroads has reserved another $500,000 of ad time in Omaha, Neb., and Lincoln, Neb., for ads attacking Nelson, a spokesman confirmed.