"The last stimulus didn't help. Why would we raise taxes to do it again?"If you measure the effects of the stimulus against the political promises (like employment won't go above X), you would be disappointed. But that's not much different from believing your new toothpaste is going to get the gorgeous girl to kiss you, or a business plan will play out perfectly.
In this case, the economy was sicker than economists thought. The stimulus medicine, while effective in stopping the unemployment spiral, didn't live up to all the predictions. I could blame Obama, or the provisions of the stimulus (called Porkulus in a lot of comments pages). But I'm a fact-based kind of person, so I look at this graph and say "thank God for the stimulus."
Anyone arguing that the stimulus did nothing, you better be able to refute this graph. Until someone refutes it convincingly, I call bullshit on "the stimulus did nothing."