I thought these two polls were interesting. They show the pre-convention popularity of the six major Democratic convention speakers. Note that Michelle Obama is the most popular with the general public, with a favorability rating of 58% in both polls. I'm sure she didn't hurt that rating at all with the great speech she gave on Monday night.
The Gallup Poll was done between July 13th and 17th of a random national sample of 1,023 adults, with a margin of error of 4 points.
The YouGov Poll was done on July 23rd and 24th of a random national sample of 1,300 adults, with a margin of error of 4.2 points.
