Enrollment

Carriers are especially embracing the private exchange model.

More than half of actual site users said the sites worked.

Centene hopes to have data on its nine marketplace states in December.

About 35,000 Washington residents have signed up for insurance through the state's new health care exchange since it opened on Oct. 1.

Sen. Marco Rubio says he'll introduce legislation to delay the penalty that can be assessed on individuals who don't buy insurance under the government's new health care law.

As questions mount over the website's failure, insider interviews and a review of technical specifications by The Associated Press found a mind-numbingly complex system put together by harried programmers who pushed out a final product that congressional investigators said was tested by the government and not private developers with more...