Aaron Bernstein/Reuters A sign against Supreme Court nominee Brett Kavanaugh is seen across from the court on Oct. 1, 2018.

Robert Post, the former dean of Yale Law School, minced no words in excoriating Brett Kavanaugh’s confirmation to the Supreme Court in an op-ed published in Politico on Saturday.

Kavanaugh, who graduated from the law school in 1990, had “stoked the fires of partisan rage and male entitlement,” Post wrote of the judge’s behavior following multiple allegations of sexual misconduct. Kavanaugh will “undermine the [Supreme Court’s] claim to legitimacy,” Post said, calling the judge’s confirmation “an American tragedy.”

Kavanaugh was confirmed by the Senate on Saturday afternoon and quickly sworn in as a justice on the nation’s highest court.

“He had apparently concluded that the only way he could rally Republican support was by painting himself as the victim of a political hit job,” Post said of Kavanaugh and the way the judge had attempted to defend himself from the accusations of sexual assault and harassment. “He therefore offered a witches’ brew of vicious unfounded charges, alleging that Democratic members of the Senate Judicial Committee were pursuing a vendetta on behalf of the Clintons. If we expect judges to reach conclusions based solely on reliable evidence, Kavanaugh’s savage and bitter attack demonstrated exactly the opposite sensibility.”