"I seriously doubt that the first "big spurt" Bill Clinton enjoyed didn't come until after the 1992 Democratic Convention."
Yeah, I don't think there was any big spurt at all! I believe the Dems were very surprised when Slick won. If there is a spurt to be remembered it is that little guy with the big ears from Texas that caused many people to vote for an independent, totally ignoring the fact that they were wasting their vote and giving the election to Slick.
I don't think he was referring to polls.