During this year's Presidential debates, one thing struck me most forcibly, but I never heard anyone else else talking about it — the far greater articulateness that Clinton displayed.
I looked around for libraries to calculate the grade-level of body of English text, and settled on textstat (repo here).
Using the transcripts of the three debates, I found that the English used by Clinton had a 8th-9th grade score and Trump had a 5th-6th grade score. Whether Trump's performance is by design or not is a question people have been arguing with me about — I have no opinion about that, but I was glad to find a way to assign numbers to my impression.
My little script here.