04/24/2010 05:12 am ET Updated May 25, 2011

Colorado Amendment 54 Barring Campaign Contributions From Unions Ruled Unconstitutional

A voter-approved Constitutional amendment barring campaign contributions from unions and some state contractors was today ruled unconstitutional by the state Supreme Court.

The decision wraps up a 16-month-long fight over the constitutionality of a law that opponents said curbed free speech rights and which threatened to chill donations to political candidates.

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