Citizens United v. Federal Election Commission 558 U.S. 310 (2010) is a landmark U.S. constitutional law, campaign finance, and corporate law case dealing with regulation of political campaign spending by organizations - wikipedia 
The United States Supreme Court held (5–4) on January 21, 2010 that freedom of speech prohibits the government from restricting independent expenditures for communications by nonprofit corporations, for-profit corporations, labor unions, and other associations.
# More Perfect (podcast)
This podcast raises in a powerful way the tension between political partisanship can powerfully effect, or paralyse effective legal deliberation.
https://www.podtrac.com/pts/redirect.mp3/audio.wnyc.org/moreperfect/moreperfect110217_citizensunited.mp3
Citizens United - Radiolab Presents: More Perfect
When a supreme court meets in private, or agencies that have the power to implement or otherwise moderate legal rulings become stuck in stale-mate, it comes down to not just the politics of belief of the justices or officials concerned, but a set of procedural processes that are able to keep the nature of the debate and internal conflict hidden from the public.
# See also - Citizens United v. FEC