More than 1 million people logged on in the final day to buy coverage for Jan. 1.
Many lawmakers missed a Senate hearing on the response to the outbreak.
The second enrollment period will provide a test for the health law.
About 70 percent of new customers can use a shorter form on Nov. 15.
The GOP is pressing for details on HealthCare.gov's security.
Darrell Issa demanded Marilyn Tavenner testify on the issue this month.
People trying to confirm immigration status have trouble logging in and uploading documents.
A bipartisan group of House members wants to reform the way the government buys information...
The work is raising concerns about a repeat of last fall's failings.
HeathCare.gov users are being asked to change their passwords “out of caution.”
“We're going to have a very strong number when this period ends,” Carney said Monday.
“The system isn’t available at the moment,” Web pages said early Monday.
Roughly 220,000 plans were selected by new customers, according to HHS.
The practice is drawing criticism from journalists.
“What is the White House trying to hide?”
The Oversight chairman said officials "refused to admit" problems with HealthCare.gov.
Rep. Renee Ellmers (R-N.C.) said Friday that it was "no surprise" that the federal healthcare...
“I should have called the Estonians," Obama joked.
CMS concedes HealthCare.Gov "won't be perfect" during next enrollment.
Some consumers who paid their premiums are still waiting to be covered.
House Science Committee Chairman said "Heartbleed" security flaw may make site less secure.
Obama heralded the achievement as "a big step forward."
The press secretary was passed a note saying HealthCare.gov was back in operation.
The vice president encouraged navigators to stay patient and reassuring.