A top Republican presidential candidate is doubling down on the party’s anti-Obamacare positions in an effort to revive support for the Affordable Care Act.

“Never go back,” Trump said during an interview with CBS’s “Face the Nation” program on Sunday.

“I think we’ve been through the dark times before.

And we’ll never go back.

I think we’re better off now.”

In a speech Monday to an anti-government crowd in Iowa, Trump pledged to “never go to the darkness” on Obamacare, and he reiterated his vow to repeal and replace the landmark health care law.

“We’re going to keep it, we’re going back to it, and we’re not going back,” he said.

“You’re not supposed to go back because you’re going through a bad time,” he added.

The Republican nominee, who is considering running for president in 2020, is facing stiff competition from Democrat Bernie Sanders and Democratic nominee Hillary Clinton.

The Vermont senator and former secretary of state has taken aim at the law’s impact on people with pre-existing conditions, saying it was “a disaster for the American people.”

The law, he said, “created a financial nightmare for people who need health care, it made it harder for people to get health care coverage, it increased the cost of health care and created the very problem it was supposed to fix.”