Think tanks? and dummies? Oxymorons!
Gee...how about the Brookings Institution? How about the Public Administration department of every major university in the United States?
The problem for you, lurking DUmmies, is that you think anything that for even one moment departs from your narrow little agenda is "right wing." If you want complete and utter compliance to your agenda, you have moveon.org, but of course they have no credibility.
You could also claim Paul Krugman, and 10 years ago that might have been a real feather in your cap. Now, however, he has squandered his considerable reputation on leftist bullshit.
And that's a shame - Krugman used to be a giant in his field.