Support WBUREven Talking About Weakening Obamacare Provisions Weakens The ExchangesDanielle Kurtzleben July 21, 2017 ShareDozens of people stand in the offices of Sen. Marco Rubio, R-Fla., protesting against the Republican health care plan on Capitol Hill on Thursday. Uncertainty about the future of the health care system has shaken insurers. (Getty Images)