On May 18, 2017, 15 states and the District of Columbia filed a motion to intervene in House v. Price, a lawsuit threatening the availability of federal funds (about $9 billion in 2017) for cost-sharing reduction (CSR) payments to health insurers under the Affordable Care Act (ACA).  The lawsuit pertains to whether or not CSR payments are subject to annual Congressional appropriations.  It was initially filed in November 2014 in U.S. District Court, which ruled in favor of the U.S. House of Representatives in May 2016, but held its decision in abeyance pending appeal.  It is now before the U.S. Circuit Court of Appeals in the District of Columbia.