Former Housing Secretary Julián Castro said Saturday that a newly-reported allegation of unwanted sexual contact against Supreme Court Justice Brett Kavanaugh should be investigated.

In a tweet, Castro said that nonprofit owner Max Stier’s allegation that Kavanaugh exposed himself at a party before other students pressed him against a female student, forcing his genitals to come in contact with her hand, should be investigated.

“Brett Kavanaugh’s confirmation is a shame to the Supreme Court. This latest allegation of assault must be investigated,” he tweeted.