Though congressional efforts to repeal and replace the Affordable Care Act (ACA) seem to have stalled, the Trump administration retains broad executive authority to reshape the health care landscape. Perhaps the most consequential choices that the administration will make pertain to Medicaid, which today covers more than 1 in 5 Americans. Much has been made of proposals to introduce work requirements or cost sharing to the program. But another decision of arguably greater long-term significance has been overlooked: whether to allow “partial expansions” pursuant to a state Medicaid waiver. Arkansas has already submitted a waiver request for a partial expansion, and other states may well follow its lead.
Bagley, Nicholas. "Small Change, Big Consequences — Partial Medicaid Expansions under the ACA." Adrianna McIntyre and Allan M. Joseph, co-authors. New Eng. J. Med. 377, no. 11 (2017): 1004-6.