On Tuesday, Hillary Clinton issued her defense of the Affordable Care Act and proposals to change the landmark health law, signaling the next battle in a war with all the signs of a political stalemate. Americans are basically evenly split in their assessments of the law and sharply divided along partisan lines; Republican presidential candidates want to scrap the law, while Democrats support keeping it (Clinton) or expanding it (Bernie Sanders). None of this is new to anybody, nor expected to change anytime soon.