About 6 million Americans would sign up for either short-term or association health plans (AHPs) by 2023 if the Trump administration's proposed rules are implemented as written, the Congressional Budget Office and the Joint Committee On Taxation say in a new report on federal insurance coverage and costs. The agencies say about 4 million would enroll in AHPs, and another 2 million in short-term plans, and that premiums for remaining small group and individual marketplace plans would then increase by...