Donald Trump’s ascension to the White House puts President Barack Obama’s Affordable Care Act  in grave peril.

Ever since the law passed in 2010, Republicans have campaigned on a pledge to repeal Obama’s signature domestic policy achievement. Trump’s victory, with continued GOP control of Congress, gives them their first opportunity to do so.

Trump and congressional Republicans have set sky-high expectations for repealing Obamacare; he’s promised to scrap it “very very quickly.” And they have a road map to repeal significant parts of the law, even with a narrow Senate majority.

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