Nate Silver picks up an interesting point: Much of the opposition to healthcare reform comes from the left - about 25%. We need to keep pushing on the final bill, because if there's one thing politicians understand and fear, it's bad poll numbers:

Ipsos/McClatchy put out a health care poll two weeks ago. The topline results were nothing special: 34 percent favored "the health care reform proposals presently being discussed", versus 46 percent opposed, and 20 percent undecided. The negative-12 net score is roughly in line with the average of other polls, although the Ipsos poll shows a higher number of undecideds than most others.

Ipsos, however, did something that no other pollster has done. They asked the people who opposed the bill why they opposed it: because they are opposed to health care reform and thought the bill went too far? Or because they support health care reform but thought the bill didn't go far enough?

It turns out that a significant minority of about 25 percent of the people who opposed the plan -- or about 12 of the overall sample -- did so from the left; they thought the plan didn't go far enough.