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This Day in American History

January 21

1 historic event on this date

Court Case2010

Citizens United v. FEC Decision

The Supreme Court ruled in Citizens United v. Federal Election Commission that corporate funding of independent political broadcasts cannot be limited under the First Amendment, effectively allowing unlimited independent political expenditures by corporations and unions.

Why It Matters

This controversial decision fundamentally changed campaign finance law and sparked ongoing debates about money in politics, corporate personhood, and the influence of wealthy interests in elections.

Explore the Principles Behind the History

Every event in American history connects to the founding principles. Discover the ideas that shaped these moments.

View the 28 Founding Principles