1 gen 1990 anni - 1990 Austin v Michigan Chamber of Commerce
Descrizione:
 The Supreme Court ruled that prohibitions on  corporations from using treasury money to make independent expenditures to support or oppose candidates in state elections was constitutional. 
This ruling re-enforced the existing federal ban on corporate political expenditure. It would not be overturned until 2010 with Citizens United v FEC, which found that such prohibitons were in fact unconstiutitonal. 
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