Answer:
Citizens United v. Federal Election Commission, 558 U.S. 310 (2010), was a landmark decision of the Supreme Court of the United States regarding campaign finance laws and free speech under the First Amendment to the U.S. Constitution. It was argued in 2009 and decided in 2010. The court held 5-4 that the free speech clause of the First Amendment prohibits the government from restricting independent expenditures for political campaigns by corporations, including nonprofit corporations, labor unions, and other associations.
The case began after Citizens United, a conservative non-profit organization, sought to air and advertise a film critical of then-Democratic presidential candidate Hillary Clinton shortly before the 2008 Democratic primary elections. Broadcasting the film would have been a violation of the 2002 Bipartisan Campaign Reform Act, which prohibited any corporation, non-profit organization or labor union from making an "electioneering communication" within 30 days of a primary or 60 days of an election, or making any expenditure advocating the election or defeat of a candidate at any time. Citizens United challenged the constitutionality of this law, and its case reached the Supreme Court.
In a majority opinion joined by four other justices, Associate Justice Anthony Kennedy held that the Bipartisan Campaign Reform Act's prohibition of all independent expenditures by corporations and unions violated the First Amendment's protection of free speech. The court overruled Austin v. Michigan Chamber of Commerce (1990), which had allowed a prohibition on election spending by incorporated entities, as well as a portion of McConnell v. FEC (2003) that had upheld restricted corporate spending on "electioneering communications." The ruling effectively freed corporations (including incorporated non-profit organizations) to spend money on electioneering communications and to directly advocate for the election or defeat of candidates. In a dissenting opinion, Associate Justice John Paul Stevens argued that the court's ruling represented "a rejection of the common sense of the American people, who have recognized a need to prevent corporations from undermining self government."
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