From the NYT
…the Supreme Court on Tuesday agreed to hear a new campaign finance lawsuit that challenges long-established federal caps on the total amount an individual can contribute to federal campaigns in a two-year cycle. In a ruling last year, a special court in Washington correctly upheld those limits, which in some form have been included in federal law since 1974.
If the justices were to overturn that decision, it would be the first time that the court has struck down a contribution limit as unconstitutional. That would eliminate an essential tool in combating the corrupting effects of money in politics.