Hillary Clinton came after Bernie Sanders from the left, on Saturday, during a Democratic presidential primary debate aired on CBS.

Sanders, a U.S. senator from Vermont, said the United States needs campaign finance reform to get rid of the “power of the insurance companies and the drug companies.”

“Why do we continue to get ripped off by the drug companies, who can charge us any prices they want?” Sanders asked. “Why is that we are spending, per capita far, far more than Canada, that guarantees health care for all people?… When millions of people stand up and are prepared to take on the insurance companies and the drug companies, it will happen. I will lead that effort. Medicare for all — a single-payer system — is the way we should go.”

Clinton said she has been waiting for years for a single-payer revolution that never came.

Sanders’ own health proposal would eliminate the Patient Protection and Affordable Care Act (PPACA) system, Clinton said.

The Sanders proposal also “eliminates private insurance; eliminates Medicare; eliminates Medicaid, Tricare, [and] the Children’s Health Insurance Program,” Clinton said. “And it puts all together in a big program, which he then hands over to the state to administer. I have to tell you, if I lived in Iowa, I would not want Terry Branstad administering my health care.”

Democrats should be coming together to support and strengthen PPACA, not trying to eliminate PPACA, Clinton said.

“I don’t think we should have to be defending it against Democrats,” Clinton said.