Well, when you hire for political reasons instead of skills and abilities,

this is what you get.
In four papers published between 1993 and 2017, including her doctoral dissertation, Gay, a political scientist, paraphrased or quoted nearly 20 authors—including two of her colleagues in Harvard University’s department of government—without proper attribution, according to a Washington Free Beacon analysis. Other examples of possible plagiarism, all from Gay’s dissertation, were publicized Sunday by the Manhattan Institute’s Christopher Rufo and Karlstack’s Chris Brunet.

The Free Beacon worked with nearly a dozen scholars to analyze 29 potential cases of plagiarism. Most of them said that Gay had violated a core principle of academic integrity as well as Harvard’s own anti-plagiarism policies, which state that "it's not enough to change a few words here and there."
And I'll bet Harvard knew about at least some of this.  But she checked all the proper DEI boxes, so they made her the President of the place.

That worked out well, didn't it?