Not to defend the American public, who does not deserve any defense in the slightest, but...
I have a friend in advertising who specializes in Google SEO, and he pointed out this will include searches that contain the phrase as a subset of the search, such as "When did Joe Biden drop out" or "Why did Joe Biden drop out".
Right, "did Biden drop out" had a spike as seen in the first picture below. It's hard to tell magnitude. When comparing to another phrase, it's easy to see that the spike wasn't even close to the spike for another election day phrase: 'who is Kamala?'