Colorado campaigners have secured enough signatures to get two initiatives that would place restrictions on hydraulic fracturing, or fracking, in the state on the November ballot.

The measures need 86,105 signatures by Aug. 4, and Coloradans for Safe and Clean Energy said it has well surpassed that mark. The effort, bankrolled in part by Rep. Jared Polis, D-Colo., has roiled Colorado politics, where sitting Democratic Gov. John Hickenlooper and Democratic Sen. Mark Udall are both trying to win re-election.