The Republican bill to repeal and replace Obamacare has passed its first big legislative hurdle, after a combined 44 hours of rancorous committee hearings that began Wednesday morning and stretched through the night into Thursday.

Now that the measure has been advanced by two key House panels, Ways and Means and Energy and Commerce, it will head Wednesday to the House Budget Committee, before getting a full House vote. Between now and then, the Congressional Budget Office is likely to release an estimate of the bill’s cost and coverage, likely feeding the controversy already swirling around the legislation and threatening its demise.