In September 2018, during the Supreme Court nomination hearings for Brett Kavanaugh, Cornyn accused the Democrats on the Judiciary Committee of devolving into mob rule by breaking the rules of decorum when asking for postponement or adjournment of the hearing to obtain or review documents from Kavanaugh's time working for the George W. Bush administration. Cornyn said that it was hard to believe the Democrats' claim that they could not properly assess Kavanaugh without the documents because it seemed that their minds were already made up.