ct-edit-obamacare-0818-jm-20130818-001The Obama administration announced Wednesday that it has rewritten an array of far-reaching rules under the Affordable Care Act, the most significant of which will let people keep bare-bones health insurance policies for three more years. The rule changes will touch essentially every sector affected by the 2010 health-care law. It will buffer more health plans in insurance exchanges from high patient costs, give states more time to decide whether to run their own marketplaces, and spare certain unions from a fee they have resented. The administration also is raising the possibility that small-business workers in some states might not be given a choice of health plans — potentially undermining a significant aspect of the law that federal health officials already have delayed once. MORE