The Supreme Court struck down limits on coordinated spending between candidates and political parties on Tuesday, a win for Republicans that will fundamentally change how tens of millions of dollars are spent in congressional elections. The decision will have an almost immediate impact on the midterms. Removing the limit on coordinated spending effectively gives candidates direct control over a far greater amount of money being spent on their races. It is also likely to increase the flood of political advertising that hits the airwaves each fall. The 6-3 decision, which divided the court along its usual ideological lines, held that the limits violate the First Amendment.