The Bipartisan Campaign Reform Act (BCRA), also known as McCain-Feingold, is a law passed in 2002 that aimed to regulate the financing of political campaigns in the United States. It sought to reduce the influence of money in politics by banning soft money contributions to national political parties and imposing stricter regulations on campaign advertisements. This act plays a critical role in the landscape of campaign finance regulations, influencing how candidates fund their campaigns and how much money can be raised and spent.