Congressional Republicans are renewing calls for HHS secretary Kathleen Sebelius to testify about the problematic launch of healthcare.gov, the federal online health care exchange site. "Secretary Sebelius had time for Jon Stewart, and we expect her to have time for Congress," House Committee on Energy and Commerce Chairman Fred Upton (R-Michigan) said in a statement.

An HHS official rebuffed a request to testify last week citing the government shutdown and the short time frame for the hearing.