Democrats and activists fought off Obamacare repeal last year by stoking public outrage and stirring protests. Now they want to make the health law the defining issue in 2018 races at the congressional, state and local levels. The grassroots groups at the forefront of the Obamacare fight are expanding their focus to rally opposition to virtually all Republican efforts to alter the health care system, hoping to capitalize on the backlash to repeal and turn it into a wave of victories come November.
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