Making a final push, President Donald Trump said he doesn't think congressional Republicans are "that far off" on a health overhaul to replace "the dead carcass of Obamacare."

Expressing frustration, he complained about "the level of hostility" in government and wondered why both parties can't work together on the Senate bill as GOP critics expressed doubt over a successful vote this week.

It was the latest signs of high-stakes maneuvering over a key campaign promise, and the president signaled a willingness to deal.

"We have a very good plan," Trump said in an interview broadcast Sunday. Referring to Republican senators opposed to the bill, he added: "They want to get some points, I think they'll get some points."

Trump's comments come amid the public opposition of five Republican senators so far to the Senate GOP plan that would scuttle much of former President Barack Obama's health law.

Unless those holdouts can be swayed, their numbers are more than enough to torpedo the measure developed in private by Senate Majority Leader Mitch McConnell, R-Ky., and deliver a bitter defeat for the president. That's because unanimous opposition is expected from Democrats in a chamber in which Republicans hold a narrow 52-48 majority.

Trump bemoaned the lack of bipartisanship in Washington, having belittled prominent Democrats himself.

"It would be so great if the Democrats and Republicans could get together, wrap their arms around it and come up with something that everybody's happy with," the president said. "And I'm open arms; but, I don't see that happening. They fight each other. The level of hostility."

Trump has denigrated Democrats on numerous occasions, including a jab at Democratic Sen. Elizabeth Warren in the same interview: "She's a hopeless case. I call her Pocahontas and that's an insult to Pocahontas."

Warren, a leading liberal and defender of the Affordable Care Act, has opposed efforts to pass a bill to replace the law. The Democrat reiterated her opposition in a statement to The Associated Press on Sunday, saying the health care bill being pushed by Senate Republicans is a "monstrosity."

In a tweet last week after Georgia's special House election, Trump also criticized House Democratic Leader Nancy Pelosi and Senate Democratic Leader Chuck Schumer. "I certainly hope the Democrats do not force Nancy P out. That would be very bad for the Republican Party — and please let Cryin' Chuck stay!" he wrote.