It's not just seeing their eat-the-poor, feed-the-rich, drill-ANWR budget bill derailed. It's the latest NBC/WSJ poll numbers:
When it comes to (READ ITEM), which party do you think would do a better job--the Democratic Party, the Republican Party, or both about the same?
Protecting the environment: Dems lead by 39 points Dealing with Social Security: Dems by 22 Dealing with health care: Dems by 26 Dealing with taxes: Dems by 10(first Dem lead ever) Dealing with gas prices: Dems by 28 Dealing with education: Dems by 19 Dealing with the economy: Dems by 14 Reducing the federal deficit: Dems by 19 Dealing with foreign policy: Dems by 9(first Dem lead) Dealing with energy policy: Dems by 16 Controlling government spending: Dems by 12 (first Dem lead) Dealing with abortion: Dems by 8 Dealing with Iraq: Dems by 3 (first Dem lead) Protecting America's interests on trade issues: Dems by 10 (first Dem lead) Promoting ethics in government: Dems by 5 Dealing with the war on terrorism: Reps by 9 (smallest lead ever) Dealing with immigration: Dems by 6 Ensuring a strong national defense: Reps by 21 (smallest lead) Promoting strong moral values: Reps by 17 (smallest lead)
Paul Waldman has more detail and analysis over at The Gadflyer.