Get ready for even fiercer TV advertisement wars next campaign season. On Wednesday, the Supreme Court hears Citizens United v. Federal Election Commission, which challenges legislation like the 2002 McCain-Feingold bill, which limits the amount of money corporations and unions can spend on ads supporting or attacking specific candidates. Experts expect that the court will loosen the current restrictions by expanding the types of ads that unions and corporations can purchase. This would likely benefit Republicans, since many for-profit companies tend to support the GOP. Unions, by contrast, favor the Democratic Party and don’t have the same amount of money at their disposal. In Wednesday’s case, Citizens United, a conservative nonprofit group, is arguing that the FEC violated its free speech rights when it blocked them from paying to advertise and air Hillary: The Movie, a feature-length film criticizing then-Senator Clinton, during her presidential campaign.