http://www.americanpresident.org/kotrain/courses/TR/TR_In_His_Own_Words.htm
“To announce that there must be no criticism of the President, or that we are to stand by the President, right or wrong, is not only unpatriotic and servile, but is morally treasonable to the American public.”
(1918) Theodore Roosevelt
“We have a right to debate and disagree with any administration.”—Hillary Clinton
Apparently TR said that on May 7, 1918, while the US was involved in World War I. So it's sort of ironic to use this quote on FR since plenty of people here thought it was treasonable to criticize Bush while we had troops in Iraq.