WASHINGTON (AP) — Democratic Sen. Cory Booker of New Jersey says he's going to make public an email from Supreme Court nominee Brett Kavanaugh, even if it puts him at risk of being expelled from the Senate.

Booker says he will violate a committee rule and release an email from Kavanaugh on the subject of racial profiling. The Judiciary Committee is now holding that email on a confidential basis.

Calling it an act of civil disobedience, Booker says he wants to expose that some of the emails being held back "have nothing to do with national security."

Republican Sen. John Cornyn of Texas called Booker's action "irresponsible and conduct unbecoming a senator."

He read a rule contemplating expulsion of senators for violating Senate confidentiality rules. Several Democrats said in response, "bring it on."