More than five thousand adult Sussex County residents stand to lose health care coverage if the Trump administration and a Republican-controlled Congress carry through with their threat to dismantle the Affordable Care Act’s Medicaid Expansion provision.

According the progressive think tank New Jersey Policy Perspective, 1,600 parents and 3,800 childless adults in the county would lose their benefits, and likely their ability to afford any healthcare, if the expansion—which allowed states to expand Medicaid benefits to adults with incomes under 138 percent of the poverty line.

Overall, about half a million people statewide stand to lose health insurance if the new Administration does as it has promised—which is to make dismantling the ACA a priority. Trump has said he would like to keep a few provisions, but expanded Medicaid is not one of them.

Both Chris Christie and Mike Pence opted for Medicaid expansion in their states, and still insists it was the right decision, having expanded health coverage while simultaneously saving N.J. $1 billion.

The loss of coverage may come as a shock to some who voted for Trump despite benefitting from the ACA, said U.S. Rep. Frank Pallone (D-Long Branch), a key architect of the law: “Many voters who elected Trump didn’t realize that a Republican administration determined to “repeal and replace” President Obama’s signature health care law would personally affect them,” he said.

“Democrats stand ready to work to improve and strengthen the Affordable Care Act, but we will continue to stand resolute against any effort to dismantle it,” he told Congress on Nov. 15.