In crafting an Obamacare replacement, Donald Trump and Republican congressional leaders will have to unite on complicated changes affecting the financial and physical well-being of millions of people. Republicans have “a really narrow path,” says Grace-Marie Turner. “They’ve got to deal with the politics of this, they’ve got to make sure they come up with good policy, and they also have to process challenges.” House Ways and Means Chairman Kevin Brady (R-TX) says of the challenge, “Unlike Obamacare, which ripped up the individual market, this will be done deliberately, in an appropriate timetable.”

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