Washington ? Democratic congressional leaders predicted passage of health care legislation within a few months despite undimmed Republican opposition, claiming momentum Thursday from President Barack Obama’s speech and renewed commitment from lawmakers fresh from a month of meetings with constituents.

Increasingly, events in the Senate Finance Committee appeared pivotal, precursor to likely votes in both the House and the Senate by early October. “I’m confident the president will sign a bill this year,” said House Speaker Nancy Pelosi of California.

While effusively praising Obama’s speech from the night before, Pelosi and Senate Majority Leader Harry Reid of Nevada signaled separately the president may not prevail in his call for legislation that allows the federal government to sell insurance in competition with private industry.

Reid said that while he favors a strong “public option,” he could be satisfied with establishment of nonprofit cooperatives, along the lines expected to be included in the bill taking shape in the Finance Committee.

Pelosi, who has long favored a measure that allows the government to sell insurance, passed up a chance to say it was a nonnegotiable demand.

As long as legislation makes quality health care more accessible and affordable, “we will go forward with that bill,” she said.

Democrats are divided over the public option in both houses, liberals strongly in favor and many moderates against it. Critically, though, it appears that any chance for Republican support would evaporate if legislation permits immediate, direct competition between the government and insurance industry.

On the morning after his speech, Obama renewed his campaign for passage of his top domestic priority. Declaring that too many individuals are being denied coverage, he said, “It is heartbreaking and it is wrong and nobody should be treated that way in the United States of America. Nobody!”

He also cited new Census statistics showing that the number of uninsured has risen to 46.3 million from 45.7 million in 2007.

In general, the legislation would provide new protections to Americans with insurance, help the uninsured afford coverage, require most individuals to carry coverage and aim to slow the growth of medical costs overall. The measure would be paid for through reductions in planned Medicare spending and tax increases.

Obama has said his approach will not result in higher deficits, but Congressional Budget Office estimates dispute him.

Most Republicans made clear during the day that Obama’s speech had done nothing to lessen their opposition.

After months of missed deadlines caused by internal division and GOP opposition earlier in the year, neither Pelosi nor Reid was willing to outline anything more than a broad timetable for action on the legislation. But increasingly, it appeared that events in the Finance Committee would determine the pace.

There, Sen. Max Baucus, D-Mont., has said he will convene the panel the week after next to vote on legislation that would meet Obama’s goal of expanding health care, providing consumer protection to those with coverage, and slow the growth of medical spending overall.

Baucus long ago embraced the proposed co-ops rather than direct government competition with industry, and it appears unlikely liberals have the votes to overrule him.