I ran across this yesterday in a book I was reading. From spring 1940:
“Sentiment for going to war with Germany has increased since the Nazi invasion,” Dr. George Gallup, the nation’s best-known pollster, wrote while British warships were still ferrying retreating Allied troops off the Continent, “but the increase has been less than four percent. A nation-wide survey just completed finds the country still more than 13 to 1 against American entrance into the conflict.”
So, what you’re saying is, Americans whitewashed literal Hitler because they thought “maybe both sides are the same?”
Basically tied.
The Economist is tracking the contest. Here you can find the latest polls, though it should be noted that pre-election polls have limited predictive power for the final result until the end of the summer in an election year.