It is hard to know what a compromise would look like. ACA needs tax money to subsidize poor people on plans. The Trump tax plan needs all the subsidies removed so it doesn't create a giant deficit in the budget. I guess go halfsies... kick off some people from health care and only cut taxes for the rich half as much? Right now, both sides feel like they lack incentive to compromise. The Democrats are seeing that attempt after attempt to repeal completely has failed, and the Republicans are sure that ACA will blow up over time, swinging public opinion back their way. If I were to judge, I'd say the Republicans are feeling more pressure--they can't wait too long or the next elections will be upon them and they can only do so much by the reconciliation process each year.