Democratic presidential candidate Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE on Sunday night mocked Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE’s numerous conditions for allowing hydraulic fracturing operations.

“My answer is a lot shorter,” he said, responding to a debate question about whether the candidates support fracking, a procedure in which pressurized water and chemicals are injected into the ground to release oil and natural gas.

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“No, I do not support fracking,” he said to cheers from the debate crowd in Flint, Mich.

Clinton said she opposes individual fracking operations if a series of conditions are met: if local communities oppose it, if the drilling releases methane or contaminates water or if fracking operators aren't required to identify the chemicals they are using.

“By the time we get through all of my conditions, I do not think there will be many places in America where fracking will continue to take place,” she said.

“First, we’ve got to regulate everything that is currently underway, and we’ve got to have a system in place that prevents further fracking unless conditions like the ones I have mentioned are met.”

The federal government has limited regulatory power over fracking except when it happens on federal land. State and local governments, though, have tried to regulate the practice to varying degrees. New York has banned fracking, while the Texas Legislature blocked its cities from limiting the practice on their own.

Sanders, though, said he opposes fracking across the board. He said governors, even Democrats, who allow fracking in their states are wrong for making an economic argument in favor of the technique.

“I talk to scientists who tell me fracking is doing terrible things to water systems all over this country,” he said.

“We’ve got to be bold now. We’ve got to transform our energy system to energy efficiency and sustainable energy. We have to do it yesterday.”