In 2010 President Barack Obama achieved a goal that had eluded presidents going back to Harry S. Truman. But it damaged his presidency, and ever since, Obama and Democrats in Congress have fought off relentless maneuvers to repeal or undermine the Affordable Care Act.
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Enduring influence is the central theme for many of the names atop this year's list, Modern Healthcare's 15th annual ranking. Coming in at No. 2 and No. 3 this year are CEOs of two of the nation's largest healthcare systems. The nation's payers are also well represented at the top.