WASHINGTON - Republicans revived attacks against their favourite target "Obamacare" Tuesday by seizing on technical failures to try to delay its rollout, amid some fraying of Democratic support for the health care reforms.
The rocky debut of the website where people started to sign up for insurance on October 1 under the country's health care law was largely obscured by recent political clashes in Washington over spending and raising the nation's debt limit.
President Barack Obama signaled a shift in tone Monday in acknowledging the technical problems, with reports emerging that Healthcare.gov was launched despite signs of serious shortcomings during simulation tests.
Republicans - bruised by their failed attempts to dismantle the health care law during the budget fight - appeared eager to pounce on a chastened White House.
"It's unfair to punish people for not purchasing a product that they can't purchase right now because the technology that's in place, the website they're supposed to buy it on - by the president's own admission - is not working," Republican Senator Marco Rubio, a potential 2016 presidential candidate, told CBS News Tuesday.
Beginning January 1, most Americans must have health insurance or pay a fine.
But that requirement known as the "individual mandate," in which enrolment of millions of young healthy Americans is seen as helping pay for the broader coverage that would help the poor and elderly, has been hotly challenged by Republicans for months.
"All I'm calling for is a delay on that requirement, until the General Accounting Office of the United States certifies that the website is up and working and functioning and has been functioning for six consecutive months," Rubio added.
"I think that's a prudent approach," he said.
Republican lawmakers uniformly oppose so-called Obamacare, with House Speaker John Boehner insisting that dismantling the law remained a top priority for his party.
Fueling the ire has been a series of embarrassing technical glitches riddling the federal website, where many of the country's tens of millions of uninsured have had trouble logging on or securing coverage.
Many critics see such hurdles as symptomatic of a fatally flawed system.