From that point on, if you do a mouse-hover over an underlined passage or anything that looks like a footnote, in blue, a little window will pop up showing side notes for that part of the speech.
Thanks to the Atlantic's Jennie Rothenberg Gritz and Clarissa Matthews for making this work. In case you're interested, I started with a Word file of the official speech text and then inserted Word "comments" at the relevant points. We then ran it through a conversion routine to have the comments rendered into the HTML popups that you see.
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