President Trump’s camp is playing political hardball to bring a reluctant Republican senator in line behind the GOP’s health-care bill.

America First Policies, the issues nonprofit helmed by Trump campaign staffers to back his plans, will buy $1 million of ads critical of Nevada Sen. Dean Heller, according to Politico.

Heller, facing an uphill re-election battle in the purple state in 2018, said Friday that he opposes the Senate ObamaCare repeal.

“It’s going to be very difficult to get me to a yes,” Heller said, pinning his stance on the law’s rollback of Medicaid funding.

Nevada is one of 31 states that expanded its Medicaid program under the Affordable Care Act — and was the first of only nine Republican-run states to do so.

America First’s digital, TV, and radio ads will slam Heller as a “typical politician,” insiders said.

Senate conservatives Rand Paul of Kentucky, Mike Lee of Utah, Ron Johnson of Wisconsin, and Ted Cruz of Texas said Thursday they opposed the bill, but were “open to negotiation.”