Marilyn Tavenner, head of the Centers for Medicare and Medicaid Services, said the government's health care website has improved since its widely panned launch a month ago, and is still improving.
A senior government official declined to say Tuesday if the administration will support legislation to fulfill President Barack Obama's oft-stated promise that anyone who likes their health care plan will be able to keep it under the nation's new law.
House Democrats are worried about persistent problems with the rollout of President Barack Obama's health care law and one says the president needs to "man up" and fire those responsible.
House Republicans unveiled a bill Friday renewing the Social Security payroll tax cut and extending but trimming unemployment benefits but barreled toward a showdown with President Barack Obama by including language jumpstarting work on a controversial oil pipeline.