The Senate GOP went down meekly compared to the ferocious fight waged by the minority party in the House last week.
Majority Leader Mitch McConnell knew Wednesday he was licked.
"Today, Republicans will give Democrats one last chance to reject the horrible impact the underlying bill and this last-minute add-on will have on our country," he said. "Unfortunately, we already know that they plan to turn the other way."
Before they passed the $938 billion health reform package on Sunday, House Democrats had insisted on assurances that their Senate counterparts would approve the fixes. They include critical improvements worth billions of dollars in Medicaid payments for big states, including New York, compared with the bill the Senate passed in December.
The reconciliation bill provides more generous subsidies to help moderate-income people obtain health insurance to meet the goal of extending coverage to 32 million more Americans.
It also provides for higher taxes on investment earnings by higher-income taxpayers while easing the so-called "Cadillac" tax on top-of-the-line health insurance plans.