The ABA downgraded him in 2005 from "well qualified" to "qualified", then in 2018 said that his confirmation to the Supreme Court was not in the best interests of the legal profession or the Association. Those are certainly the people who worked most closely with him.

Objectively, you'd want to find one of the top handful of legal scholars in America to serve on the court. Kavanaugh is not one of those people. He has a scant record of legal scholarship. He does have a documented record of getting into fights in bars.