The Bipartisan Campaign Reform Act of 2002 banned corporations from donating money from their general treasury war chests to political candidate election campaigns. The 2010 landmark court case, Citizens United v. FEC, overturned this Act and previous court decisions limited political speech by corporations, because the court ruled that it violated freedom of speech ["Citizens United v. Federal Election Comm'n (No. 08-205)", Cornell University Law School, law.cornell.edu]. Critics argue corporations are not citizens, and, therefore, do no not have freedom of speech ["5 Ways You Can Fight Citizens United", Yes! Magazine, Feb. 21 2011].
Due to Citizens United, corporations can now spend a limitless amount of money on political campaigns. This means that corporations have more power to buy politicians. This is extremely scary, because corporate interests are put above citizens' health, consumer protections, environmental protections, and worker safety even more than before.