Senate Democrats and Republicans are digging in for a partisan fight over healthcare reform.

The health care proposal would cover about 10 percent of the population for ten years and cost nearly $1 trillion.

Sen. John McCain, R-Ariz., calls the bill a "monstrosity" that employs "Bernie Madoff and Enron accounting."

Other Republicans are speaking out against the cuts to Medicare that would help pay for reform.

"We're truly going to take this money from Medicare, what it's going to do to our seniors? I have a message for you -- you're going to die sooner," said Sen. Tom Coburn, R-Okla.

"It saves lives, it saves money, saves Medicare, brings down insurance premiums. Pretty good deal," explained Senate Majority Leader Harry Reid, D-Nev.

Polls show that seniors are worried that the expanding coverage for the uninsured will come at their expense. Earlier this year, former GOP vice presidential candidate Sarah Palin warned of "death panels" that would deny coverage to seniors, but that was widely disproved.

The debate continues Wednesday, and Reid is warning it will continue through the coming weekends.