While legal experts have largely dismissed the lawsuit, now before a federal appeals court, as meritless, a new Morning Consult survey of 1,988 registered voters finds a much more divided electorate.
It's unclear exactly when the appeals court will rule, but whichever side loses at this stage is nearly certain to appeal to the Supreme Court, setting up a potential legal showdown in the middle of the 2020 presidential race.
Opponents have said the ACA amounts to an unconstitutional mandate to buy insurance.
The red states, which are led by Texas, argue that because the mandate's penalty was zeroed out, Congress has lost its taxing authority and the mandate is unconstitutional. Now, the court will decide if the rest of the Affordable Care Act is still constitutional without it.
The hearing follows a 2018 ruling by U.S. District Judge Reed O'Connor in Fort Worth, Texas.
The Trump administration supported O'Connor's ruling, while a separate coalition of states led by California's Democratic attorney general, Xavier Becerra, and the House general counsel defended the law.
"In order to keep those people covered and getting the health care services that they need, it would be a huge impact on our budget".
US Soccer president Carlos Cordeiro booed over equal pay
Even before the World Cup ended, more than 50 members of Congress signed a letter sent by the Democratic Women's Caucus to U.S. In recent decades, the honor was been reserved for championship teams, including the New York Yankees and New York Giants.
Republicans argue the Supreme Court ruled that the individual mandate was an appropriate exercise of Congress' power to tax inNational Federation of Independent Business (NFIB) v. Sebelius, the first case to uphold the ACA. Still, Judge Kurt Engelhardt, a Trump appointee, pointed out that Congress could settle this dispute by cutting the individual mandate entirely, thereby eliminating the basis for the lawsuit altogether. Health care can mean the difference between life and death, financial stability and bankruptcy.
Trump, however, is on the side of conservative attorneys general.
Defenders of the law have expressed concerns recently that the 5th Circuit could throw out the case on procedural grounds after the appellate court asked the Democratic-led states and the House late last month to explain their legal standing in intervening and appealing the ruling.
The Trump administration lawyers are drawing on arguments that the architects of the health care law made in 2009 and 2010: that a penalty was crucial to getting young and healthy consumers to buy health plans and offset the costs of covering older and sicker Americans.
She called the Affordable Care Act something that "benefits everyone in the community". "The Supreme Court would probably then hear an appeal, in which [Chief Justice John] Roberts would probably again cast a deciding vote - one way or another - in June of an election year".
"There's a political solution here that you and various parties are asking us to roll up our sleeves and get involved in", Engelhardt said.
Those are the kinds of decisions Americans are making, Higgins said, and "Congress must act".
"If they have their way, millions of Americans could be forced to delay, skip or forego potentially life-saving health care", he said. "If the right-wing wins the lawsuit, families from one end of America to the other will lose; lose their healthcare, lose important pre-existing condition protections, and lose their peace of mind that there might be something there to make them well".
Democrats in Congress, including House Speaker Nancy Pelosi (D-CA), Senate Minority Leader Chuck Schumer (D-NY) and several members of the Congressional Black Caucus (CBC), rallied on the steps of the U.S. Capitol in Washington, D.C., on Tuesday.