If there is any hope of passing a bipartisan health care bill in the Senate, it may well lie with a key group of senators known as the Gang of Six.
Three Democrats and three Republicans on the Senate Finance Committee have continued to work on a compromise health care bill through Congress' summer recess. Several of them have a history of collaborating with their colleagues across the aisle to craft legislation.
As these senators attempt to hammer out a deal on health care, here's a look at the concerns each brings to the negotiating table.
Sen. Mike Enzi, Wyoming
Enzi is one of the top-rated senators with the American Conservative Union. But as a member of the Senate Committee on Health, Education, Labor and Pensions, he is also known for working on bipartisan bills with its late chairman, Massachusetts Sen. Edward Kennedy. While Enzi has rejected the health care overhaul bill produced by that committee, he is using his position on the Senate Finance Committee and in the Gang of Six to have more influence on the legislation.
Enzi has said that he opposes paying for universal coverage through tax increases or by squeezing savings from Medicare. He wants a bill that will get the support of at least 75 senators. He has rejected the Sept. 15 deadline set by Senate Finance Committee Chairman Max Baucus to have a deal.
But Enzi has also long been known to care deeply about health care issues. In the past, he pitched his own reform bill, titled "10 Steps to Transform Health Care in America," which encouraged revamping the current system in small steps.
Liberals complain that Enzi's demands will only water down the health care overhaul bill, but his conservative bona fides increase the potential for Republican support. — Audie Cornish
Listen to the NPR story about Enzi.
Sen. Charles Grassley, Iowa
Grassley is the lead Republican negotiator on the Senate Finance Committee and in the Gang of Six, and is good friends with committee Chairman Baucus; Grassley has boasted in the past of their bipartisan work.
However, of the six senators on this list, Grassley has had the toughest time dealing with constituents and rowdy town halls during the congressional recess.
As a result, Grassley says he won't vote for the bill the group is working on if it can't get more than three or four Senate Republicans on board. He says he represents their concerns at the negotiating table.
"No public option. No play-or-pay. No things that are going to lead to any rationing of health care. No interference with the doctor-patient relationship," says Grassley. "About the only place we haven't made progress along the lines of what Republicans are wanting on the bill is in tort reform."
Still, Grassley insists that he believes in the work of the bipartisan group. "I've always said I'm not going to walk away from the table," he says. "If I get away from the table, it's because I am pushed from the table." — Audie Cornish
Listen to the NPR story about Grassley.
Sen. Olympia Snowe, Maine
Snowe is a moderate who has sided with Democrats on key votes, such as the economic stimulus package earlier this year.
This past spring, she compared the life of a moderate in the GOP to that of a cast member of the reality television show Survivor.
"You are presented with multiple challenges, and you often get the distinct feeling that you're no longer welcome in the tribe," she wrote in an April op-ed in The New York Times.
Snowe is the only senator in the Gang of Six from a state that has attempted universal health care. Maine's program was signed into law in 2003 and has had limited success, falling well short of its original goal of insuring nearly 130,000 residents by 2009. Snowe says the program has failed to grow large enough to wield the clout it needs to keep costs and premiums low.
Now, as she sits at the negotiating table for a national health care overhaul, Snowe tells NPR that controlling costs is her primary focus: "What we have to do is develop a plan that's going to be available to people on an affordable basis ... containing costs, both for the American consumer and the American taxpayer." — Audie Cornish
Listen to the NPR story about Snowe.
Sen. Max Baucus, Montana
Nobody is more central to the success or failure of a health care overhaul than Baucus. Elected last fall to his sixth term, he chairs the Senate Finance Committee, where he leads the Gang of Six in crafting the definitive Senate health care bill.
A moderate, Baucus carefully guards his bargaining power. He's vague about what he wants in a bill — he is inclined not to favor new taxes, and he would like to see a public option. But his ultimate goal, as he said on July 30, is "meaningful, bipartisan legislation that can pass the Senate and become law this year."
Such pragmatism can make more liberal Democrats nervous. Baucus has a history of cooperating with the Senate Finance Committee's ranking minority member, Grassley, who is seen as the tougher negotiator.
Baucus' Washington connections have also come under scrutiny. An NPR Dollar Politics story examined his ties to industry lobbyists and noted that in his last campaign, 47 percent of his funds came from political action committees, compared to 5 percent from Montanans. — Peter Overby
Sen. Jeff Bingaman, New Mexico
Bingaman is easily the most liberal of the Gang of Six. A soft-spoken Westerner, he has made his mark in health care in the areas of Medicaid and health care for Native Americans.
Now serving his fifth term in the Senate, Bingaman, like Enzi, sits on both the Finance and Health, Education, Labor and Pensions committees.
Bingaman supports the concept of a public option to compete with private health insurance plans. But, as one might expect from a longtime senator, he has also said that he is open to compromise.
"Obviously, we wouldn't be spending all these hours in all these meetings if we didn't think there was a good chance of getting an agreement," he told New Mexico Public Television earlier this month.
But he said he was prepared for the possibility of Democrats having to move a bill without Republican support if the negotiations ultimately fail to produce a deal. "It's possible we would be forced to do that," he said. — Julie Rovner
Sen. Kent Conrad, North Dakota
A moderate Democrat, Conrad is a deficit hawk and chairman of the Senate Budget Committee.
Conrad pays close attention to the Congressional Budget Office's cost estimates for remaking health care.
According to a preliminary CBO analysis, enacting the leading health care bill in the House would cost more than $1 trillion over the next decade. That estimate is not based on a complete picture of the bill, but Conrad says that the negotiating group in the Senate Finance Committee is focused on proposing something that costs far less.
Conrad was one of the first Democrats to come out against the public option. "Those of us who have to count votes know that the public option does not have the votes," he says.
Instead, the North Dakota senator has angered liberal supporters of a health care overhaul by pushing for health care cooperatives. Conrad says they would be nonprofit, member-owned groups that could theoretically negotiate better payment rates by pulling together a network of health care providers. — Audie Cornish
Listen to the NPR Story about Conrad.