And they blame Mr. Bush and Republicans for Congress’s low approval ratings, which they say will only help the Democrats expand their majority in 2008.

“Certainly, it has been a sprint and a marathon at the same time this year,” said Representative Chris Van Hollen of Maryland, chairman of the Democratic Congressional Campaign Committee. “We have accomplished a lot, especially on the domestic front.”

Mr. Van Hollen said he was not worried about Congress’s low approval ratings. “Every one of those polls also shows much stronger support for Democratic leadership than Republican leadership,” he said. “The president is lashing out because he recognizes that people see the White House as an obstacle to change.”

Still, Democrats conceded that the hectic pace had taken a toll, especially on lawmakers who must travel long distances home and who have small children. And members of Congress have not gotten a raise or cost-of-living increase this year.

On Wednesday, the House cast its one-thousandth roll-call vote of the year, the first time that it reached that mark since the Constitution was ratified. Democrats hailed the occasion, while Republicans sniped that only 106 of the votes were on bills ultimately signed into law, and that 45 of those bestowed names on post offices or other property.

“Unlike Congress, the American people do not mistake motion for progress,” said Representative Thaddeus G. McCotter, Republican of Michigan. “They want results. And given the approval ratings, they are certainly convinced they aren’t getting them.”

Mr. McCotter said changing the schedule was an example of Democrats’ breaking promises. “They said ‘five-day weeks,’ ” he said. And he scoffed at the notion that Mr. Hoyer was also responding to Republicans who wanted more time in their home districts.