Those who fought so hard for the ACA stated when it passed that it needed more work, including President Obama. That's what our governmental process is all about--compromise and adjustments are part of the process. Getting it to the stage of a public law was YUGE. 


The problem the Republicans face, as you surely have heard, is that in the past six years they have not reached any agreement within themselves as a party as to what the adjustments would be--they cannot tell anyone what they are planning to do because they don't still and yet know. The other problem that they have (among so many) is that the ACA IS the alternative to single payer healthcare. The only other direction to go is toward single payer. So what are they going to do to keep their bumper-sticker promise? THEY DON'T KNOW. What they want to do is repeal the ACA and just go back to another 50 years of not having affordable health care for millions of people. AND something to fight over. It's all they've got.