The U.S. Supreme Court ruled in favor of health insurers seeking $12 billion from the federal government under a program set up by the Obamacare law aimed at encouraging them to offer medical coverage to previously uninsured Americans.

Centene Corp. will buy smaller rival WellCare Health Plans Inc. for $15.27 billion in stock and cash, in a move to bulk up the U.S. health insurer’s government-backed Medicare and Medicaid businesses while reducing exposure to Obamacare healthcare exchanges.

U.S. health insurer Centene Corp. said more than 1.4 million people had paid for its insurance plans via the federal Obamacare marketplace as of Jan. 7, 2018.

The pace slowed in the third week of enrollment for 2018 Obamacare individual insurance as nearly 800,000 people signed up through the federal government website HealthCare.gov, down about 75,000 people from the previous week, a U.S. government agency reported.

Ohio’s Department of Insurance said non-profit managed care company CareSource will sell health plans in Paulding County in 2018 – the last county in the United States that would have been without Obamacare individual coverage during the year.

Centene Corp., one of the largest players in the Obamacare individual insurance market, said it would offer Obamacare plans in Nevada in 2018.