The open enrollment periods since 2018 have been characterized by a significant reduction in public marketing and shortened enrollment periods of under seven weeks, about half of previous periods. Funding for ACA "navigators" who assist consumers in ACA enrollment has also been reduced in 2018 to $10 million, compared with $63 million in 2016. Overall, after open enrollment in the ACA federal insurance marketplace (i.e., healthcare.gov) peaked in 2016 at 9.6 million consumers, it declined by approximately 12.5%, to 8.4 million in 2019, based on recently released figures.
Other potential factors include political forces that may have increased uncertainty surrounding the ACA marketplace. Early in his presidency, for example, President Donald Trump announced, "I want people to know Obamacare is dead; it's a dead healthcare plan." Congressional Republicans made numerous high-profile attempts in 2017 to repeal and replace the plan. Although none fully succeeded legislatively, the elimination of the ACA's individual mandate penalty as part of the December 2017 Republican tax reform law may have reduced participation in the insurance marketplace in the most recent open enrollment period.
Trump's decision in October 2017 to end cost-sharing reduction could also potentially have affected the uninsured rate. The cost-sharing payments were made to insurers in the marketplace exchanges to offset some of their costs for offering lower-cost plans to lower-income Americans. The Trump administration had previously renewed the payments on a month-by-month basis but later concluded that such payments were unlawful. In April 2018, a federal court granted a request for a class-action lawsuit by health insurers to sue the federal government for failing to make the payments. Such lawsuits continue to be litigated.
