Delivering the GOP's weekly address, Sen. Dan Coats, R-Ind., said the glitches indicate the need for a one-year delay in requiring individuals to have health insurance.
Commenting that President Barack Obama had said the law was "more than a website," Coats said: "I agree. It is more than a website and the problems run far deeper than a few technological glitches."
He noted reports this week that 50 percent to 75 percent of those who buy individual health plans could be canceled next year.
"The administration knew this would happen," Coats said. "But the president has continued to promise repeatedly, 'If you like your health care plan, you'll be able to keep your health care plan, period.'"
He urged the president to postpone the mandate for a year, which Coats acknowledged would cause one of the key elements of the law to go into effect after next year's mid-term elections.
"By delaying the mandates until 2015, Americans will be able to weigh in on the health care law's fate," he said.
"Americans deserve the opportunity to decide whether they want to keep Obamacare or replace it with real solutions -- solutions that bring down the cost of care and protect the vulnerable."
The address offered no specific GOP proposals for an alternative to the ACA.
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