Sebelius thrust into firestorm on exchanges

The first, and perhaps most painful, call for Kathleen Sebelius to resign as President Obama?s health secretary came this month from an old family friend: Senator Pat Roberts, Republican of Kansas, who once boasted of a "special relationship" with Ms. Sebelius, forged when he worked for her father-in-law. Now Ms. Sebelius, the former Kansas governor who is the public face of Mr. Obama?s health care overhaul, is facing a barrage of criticism over the problem-plagued rollout of its online insurance exchange. Although she runs the Department of Health and Human Services, the agency directly responsible for the health care law, there are questions about how deeply she was involved in the development of the troubled Web site.