Complex sentence: In "Citizens United", the Court, following Buckley's holding providing more expansive First Amendment protections for independent expenditures made on a candidate's behalf, held that Congress could not ban independent expenditures by corporations.
Split into simpler sentences: In "Citizens United", the Court, followed Buckley's holding by providing more expansive First Amendment protections for independent expenditures made on a candidate's behalf. The Court held that Congress could not ban independent expenditures by corporations.