The White House has asked Kimberly Guilfoyle to resign as U.S. ambassador to Greece amid mounting allegations involving her financial dealings, treatment of embassy staff and relationships with foreign business interests. "We have asked Ambassador Guilfoyle to resign. She has been a wonderful asset to the team, and we wish her well," White House press secretary Katie Zacharia announced Tuesday during her first-ever briefing to the press. It is not clear whether Guilfoyle lodged her official resignation, and when asked for clarity, the White House referred Fox News Digital to the remarks from the briefing. The update from Zacharia came...