Anthony McLeod Kennedy is an American attorney and jurist who served as an associate justice of the Supreme Court of the United States from 1988 until his retirement in 2018. He was nominated to the court in 1987 by President Ronald Reagan, and sworn in on February 18, 1988. After the retirement of Sandra Day O'Connor in 2006, he was considered the swing vote on many of the Roberts Court's 5–4 decisions.

Citizens United v. Federal Election Commission, 558 U.S. 310 (2010), is 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. The court held 5–4 that the freedom of speech clause of the First Amendment prohibits the government from restricting independent expenditures for political campaigns by corporations, nonprofit organizations, labor unions, and other associations.