Citizens United v. Federal Election Commission, 558 U.S. 310 (2010), a landmark United States Supreme Court case in which the Court held that the First Amendment prohibited the government from restricting independent political expenditures by corporations and unions.
What this means is that we as citizens have little to no influence of getting quality candidates to help govern us against the high powered corporate money power that would allow them to gain even more influence over our nation and hurt the everyday citizen.