A former aide to Sen. Barbara Boxer, D-Calif., has pleaded guilty in federal court in Virginia to receiving child pornography, court records show. Jeff Rosato, 32, of Arlington, Va., faces a minimum of five years in prison when he is sentenced on May 1. Rosato must also register as a sex offender. Rosato entered his guilty plea on Jan. 29 and was remanded into custody, court records show. "Defendant received visual depictions of minors engaging in sexually explicit conduct knowingly and intentionally and not by accident or mistake," said a statement filed in U.S. District Court in Virginia that was...