The U.S. Secret Service is investigating a sexual misconduct allegation against one of its agents by a member of Vice President Kamala Harris' staff. State of play: A Secret Service spokesperson told Axios in a statement that an investigation is underway over "a misconduct allegation involving an employee." • The employee was placed on administrative leave pending the investigation's outcome, the spokesperson said. Zoom in: Senior officials in the Vice President's office were alerted by the...