Something Naoko and her team loved to do was cut up old magazines, cookbooks, and other things to create text collages to use as background art for the manga.
Unfortunately, for this panel from Act 27, they used text from a
1989 interview Donald Trump did with TIME Magazine:
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This panel from the Makoto's Melancholy side story also uses text from that same interview:
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If allowing Donald Trump, in even the tiniest of ways, to be part of the manga doesn't count as an egregious error, I don't know what does
ETA: Text from that same interview was also used in this panel from Chapter 9 of the Sailor V manga:
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