Shouldn't that be 7 in 10 don't think the Supreme Court is "too conservative"?
The key thing is that the number of eople are saying "too conservative" has increased since Roberts and Alito joined the Court. And more people are saying "too conservative" -- 31% -- than "too liberal" -- 18%. 47% think the Court is well-balanced, but back in 2005, 55% said that.
Actually, I think it's surprising, after all the press coverage of the Roberts and Alito nominations, that many more Americans haven't absorbed the view that the Supreme Court is too conservative. It suggests that the issue of Supreme Court appointments isn't going to work very well for the Democratic presidential candidates, who must be hoping to alarm people about the Court. By 55-43%, Americans approved of the Court's decision upholding the federal ban on "partial birth" abortion. And abortion is -- by far -- the main issue Democrats use to fire up voters.
But how are you supposed to vote if you think the Court is currently well-balanced? It depends on who we predict will leave the Court in the next 4 years. The Democrats ought to stress that it is far more likely that 2 or 3 liberal Justices will be going and that we need a Democratic President to preserve the balance. That is, you don't need to convince people that the Court has become too conservative and needs to be changed, only that the current balance is good. Don't demonize Alito and Roberts. Just appeal to our love of stability.