Crossroads GPS Launches New Ads in Senate Battleground States In three of the nation's most hotly contested Senate races, the Republican-aligned American Crossroads GPS is airing new TV ads beginning today. The group, co-founded by Karl Rove before the 2010 midterm elections, will spend $2.5 million attacking Democratic Sens. Sherrod Brown of Ohio, Jon Tester of Montana, and Democratic Senate candidate and former governor and Democratic National Committee chairman Tim Kaine of Virginia. The ads target the three Democrats for supporting major items on President Obama's first-term agenda. Kaine is lambasted for backing Obama's stimulus measure; Tester, for voting in favor of health reform; and Brown, for siding with Obama on health reform, cap and trade, and the Bush tax cuts. Crossroads GPS is a 501 (c) 4 nonprofit group, meaning most of its money must be spent on issue advocacy. As such, it does not disclose the identities of its donors; its sister group, the American Crossroads super PAC, does. The ads will run for 10 days. See them below: