FILE - In this Tuesday, March 23, 2010 file photo, President Barack Obama signs the Patient Protection and Affordable Care Act in the East Room of the White House in Washington. "Obamacare" led to health care coverage for some 20 million Americans, including about 4 million Hispanics and 3 million blacks, according to federal statistics. However, its fate is uncertain because of Trump’s vow to repeal and replace it. J. Scott Applewhite ASSOCIATED PRESS