Most people, liberal or conservative, agree that Gallup is the gold standard in polling and has been for many decades. I was just checking out their website and clicked on "State of the Nation" which shows a few indicators relating to the state of the nation. It doesn't make any partisan statements, but if you read between the lines by looking at the dates you can see a really interesting statistic.
In the Economic Confidence poll, the lowest rating came in a poll conducted between Aug 31 andSep 2, 1992 -- four months before George Bush senior stepped down for Clinton (which, of course was preceeded by eight years of Reagan). When I say the lowest rating, I mean the LOWEST rating EVER in the history of Gallup polling. 90% of Americans thought that the economy was crap.
Two dates tie for the HIGHEST rating ever, in the history of Gallup polling. Those polls were conducted July 25-26, 2000 and Aug 18-19, 2000. That would be four months before Clinton left office.
God, he was a good president.
Here's the page this info is coming from.