A Secret Service agent has been accused of sexually assaulting a staffer who works for Vice President Kamala Harris, according to four sources in the Secret Service community. The incident in question took place sometime over the last week during a trip devoted to providing advance security work and planning for a Harris campaign event in Wisconsin that ultimately did not take place. Several Harris staffers and Secret Service agents were in Green Bay to provide advance security and other planning for an upcoming Harris campaign event. The Harris campaign opted to go to Atlanta instead of Wisconsin on Friday,...