The bill would place stringent limits on the ability of grassroots groups to communicate to the public about legislation and elections.
Senate Republicans filibustered the legislation and Democrats held a cloture vote late last month where they need 60 votes to be able to stop the filibuster and move towards a vote on the bill itself.
However, they were unable to peel off any Republicans to support the cloture vote and lost by a 57-41 margin.
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