But some say deluge of negativity can make it harder for groups to break through; some ads aimed at post-2012 environment. Even with the Super Tuesday primaries passed, the campaigns are still being fueled by hand-over-fist spending by super PACs waging proxy battles on behalf of candidates through flurries of negative advertisements. But one prominent super PAC, the GOP-tilted American Crossroads, is hoping to go beyond attack ads (though it will sponsor plenty of those too). American Crossroads—while not backing an individual primary candidate, but rather broadly supporting Republicans in the general election—aims to influence policymaking through ads that advocate for… Read More