Sources say the insurance industry's leading lobby will seek a high-powered replacement to long-time CEO Karen Ignagni, who has resigned from America's Health Insurance Plans (AHIP) in order to take the top job at EmblemHealth in New York starting Sept. 1. It is unclear if Ignagni's departure -- first reported by Politico -- will come before or after the U.S. Supreme Court rules in the highly watched King v. Burwell case that could eliminate insurance subsidies for millions of...