Supporters of the Affordable Care Act, also opponents of Colorado’s GOP-led plan to undo the state-run insurance exchange, gather for a rally on the state capitol steps in Denver, Tuesday, Jan. 31, 2017. CREDIT: AP/Brennan Linsley On Friday, the Trump administration said the number of people who signed up for health insurance in federal marketplace fell to 9.2 million, a 4 percent decline from the number of people who signed up last year.