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Secretive nonprofits flourished — and succeeded — in 2014 state elections

By Reity O'Brien

Charities risked tax-exempt status with political ads

By Rachel Baye

Nearly 100,000 negative ads helped turn tide in Florida elections

By Michael Beckel, Reity O'Brien and Kytja Weir

Ballot measure backers spend big, win big

By Liz Essley Whyte

Ad war winners take governors' mansions

By Ben Wieder, Reity O'Brien and Rachel Baye

Mega-donors give big to state candidates

By Rachel Baye, Reity O'Brien and Ben Wieder

Corporations, advocacy groups spend big on ballot measures

By Liz Essley Whyte

Bloomberg helps Democratic governors' group close gap on Republicans

By Ben Wieder

Gubernatorial hopefuls outspend U.S. Senate candidates

By Rachel Baye

Secretive groups spend millions to influence state elections

By Reity O'Brien

Money talks: Key dollar amounts behind the TV ad wars in state elections

By Rachel Baye and Kytja Weir

Obama takes star turn in state political ads

By Ben Wieder

Non-candidate spending increases in state elections

By Rachel Baye, Reity O'Brien, Kytja Weir and Ben Wieder

'Outside' groups swamp Florida's airwaves in race for governor

By Rachel Baye

Who’s trying to influence your vote?

By Chris Zubak-Skees, Kytja Weir and Dave Levinthal