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Karen Ignagni was the woman who could have killed Obamacare. Instead, the nation’s top health insurance lobbyist helped President Barack Obama to pass his sweeping health reform. And she became emblematic of the compromises and controversies that still define the Affordable Care Act today. (Palmer, Haberkorn and Demko, 5/21)

Karen Ignagni, the longtime leader of the health-insurance lobbying group America’s Health Insurance Plans, will leave to become chief executive officer of EmblemHealth, a not-for-profit health plan based in New York. (Armour, 5/21)

Dan Durham, AHIP's executive vice president, will serve as the lobbying group's interim CEO. Speculation has swirled that a former member of Congress could take Ignagni's place. (Herman, 5/21)