I have probably posted something like this before but couldn't find it. Anyway, there are polls and then there are 'other' polls. Here is one that I kinda folloow:
https://www.predictit.org/markets/0/All?filterIds=&sort=newest&sortParameter= there are also a LOT of others. Here are some of those:
https://www.mytopsportsbooks.com/politics/The other ones are political betting places. The logic goes something like. People who vote on politics are putting their money where their mouths are, for the most part. This tends to mean that betting winners, as a group, therefore have a better idea who/what is going to win might be a better source for things political. I, for instance, took ten bucks and tried my hand. I lost it all. If nothing else it was educational and it took me almost a month to go broke with my ten bucks. I also tend to like the pridictit site over the others for absolutely no reason, other than it was started, and maintained, by a university in New Zealand which amused me.
Now, if somebody could meld all the polls and bets, I wonder what the result could teach us all.