The federal government violated its statutory obligations and breached an implied contract by ending reimbursements to health insurers for cost-sharing reductions, Maine Community Health Options (MCHO) argued in a lawsuit filed late December that seeks more than $5 million it says it was owed for the final months of 2017. The suit, filed Dec. 28 in the U.S. Court of Claims, is the first since the administration's decision to end the payments as of October, although more suits may be...