Hal Goldman, 79, who retired 22 years ago from Sears, Roebuck & Company, echoed that sentiment.

“What they’re trying to do  Obama is  is take from the senior citizens and give to the poor and the illegal immigrants,” Mr. Goldman said “It’s hurting the senior citizens who worked all their lives. Because of their age, like in Canada, you’ll have to wait six months for an M.R.I.”

In fact, the health care bills circulating in Congress would not extend coverage to illegal immigrants, though they could reduce some of the choices that Medicare beneficiaries now enjoy.

In last year’s election, voters 60 and older were the only age group to support Senator John McCain of Arizona, the Republican nominee. But that was not the case here in Broward County, which was critical to the Democratic victory in Florida. In the nine precincts that make up Sunrise Lakes, which is dominated by elderly Jewish transplants from the urban North, three of every four votes went to Mr. Obama.

That makes it particularly striking that there is such anxiety here about Democratic health care initiatives. Although the opinion is far from universal, some Obama supporters said they were regretting, or at least reassessing, their choice.

“I voted for President Obama, and I’m not ashamed to say that I’m sorry now because I don’t trust what he’s saying,” said Elaine Carl, 71, president of recreation at the development’s Phase 4. “I think they’re going to take away from Medicare. I really do.”

On Tuesday night, at three poker tables set up in the clubhouse lobby, disagreements over health care temporarily interrupted the kvetching about the broken air conditioning.