The Republican Party is unsure of what exactly to replace the ACA with.
Two days after Senate Republicans passed a new budget created to lay the groundwork for Obamacare's repeal with a 51-48 vote, their colleagues in the House did the same with a final tally of 227 to 198.
The Senate took the first step in the process early Thursday morning.
House Democratic leader Nancy Pelosi vowed to fight.
While the budget resolution passed nearly completely along party lines, there were a handful of republicans who sided with democrats and voted against the measure.
President-elect Donald Trump and Republicans in Congress have criticized Obamacare for rising premiums and reduced choice of doctors and insurance options.
The controversial health care law now limits insurance companies from charging older adults more than three times what younger people pay in premiums for individual coverage.
In a wee-hours vote last night, the Senate passed a budget that paves the way for an Obamacare repeal. During the next few weeks, two committees in the Senate and two in the House will draft legislation repealing the unwanted portions of the ACA.
By that time, Trump will have been sworn in as president.
Republicans now have unified control of Congress, which means they can finally accomplish one of their longstanding policy goals: taking health insurance away from as many as 20 million Americans.
Other Republican lawmakers want to see GOP leaders produce a replacement plan before they vote to repeal Obamacare.
House Speaker Paul Ryan, a Republican, said Obamacare was collapsing and action was urgent.
On Friday, Senate Republicans approved a budgetary outline for repealing the Affordable Care Act (also known as Obamacare), kickstarting the program's removal and leaving those insured by the plan reeling.
"We have to step in before things get worse. This is nothing short of a rescue mission", Ryan said.
The Republican-controlled House of Representatives is wasting no time in their effort to dismantle the Affordable Care Act.
The party's leadership aides voiced confidence that Friday's measure would pass, but many centrist Republicans said they were not sure how they would vote.
Heitkamp said she voted against repeal because there was no alternative in place.
Under the rules, Senate Democrats are no longer able to block or delay future votes on Obamacare by making a long speech or series of speeches. Simply put, repeal without the replacement is a disgrace. The budget resolution instructs committees to complete their work by January 27, but lawmakers have said this week that date is not necessarily binding.
The nonpartisan Committee for a Responsible Federal Budget estimated repealing Obama's signature health insurance law entirely would cost roughly $350 billion over 10 years.
"This resolution essentially fires the starting pistol. for repealing Obamacare", said Representative Bill Johnson, an Ohio Republican, shortly before the vote.