State and federal governments saw a huge, last-minute surge in Obamacare sign-ups ahead of last Sunday's deadline, boosting total enrollment that surpassed the administration's expectations. Of the 11.4 million Americans who have newly enrolled or re-enrolled in private health coverage through the Affordable Care Act (ACA) this year, 8.6 million signed up through the federal marketplace and about 2.8 million through state-based exchanges, federal officials said Wednesday. The Department of Health and Human Services had predicted up to 11.2 million enrollees for 2015. "In the final day, more new consumers signed up for health coverage than on any other day this open enrollment or last," HHS Secretary Sylvia Burwell said in a statement.