REVEALED: Battle brews in Tennessee legislature over disclosure of 'dark money'

"Increasing transparency of money spent on elections is not a limit on speech and does not bar anybody from speaking," said Patrick Llewellyn, director of state campaign finance with the nonpartisan Campaign Legal Center. Llewellyn said voters have a right to know who's paying to get candidates elected or defeated — regardless of the words they use. "Ads that attack or promote a particular candidate in an election season do influence elections," Llewellyn said.

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