Democrats thought they could defeat Brett Kavanaugh with a cascade of uncorroborated smears, but they failed and now the accusations are unraveling. The latest came Friday when Chairman Chuck Grassley referred Judy Munro-Leighton to the Justice Department and the FBI for potential prosecution for making false statements to the Senate Judiciary Committee.

Ms. Munro-Leighton was one of the women who piled on with claims of sexual assault by Mr. Kavanaugh in the progressive mob moment of the Supreme Court confirmation hearing....