Presidential candidate and billionaire Michael Bloomberg will open a campaign office in the U.S. Virgin Islands, a Bloomberg campaign spokesman confirmed in December to the Hill. "Mike believes Americans in the territories are often overlooked and have an important voice and role to play in this election," Dan Kanninen, Mr. Bloomberg's states director, said in a statement.  Political analysts have said the move to open an office in the territory is uncommon for primary candidates, however Mr. Bloomberg's campaign has been notably nontraditional from the start. The USVI has 13 delegates; a small number, but during a heated primary election battle every delegate counts. The territory's caucus is scheduled for June 6. Mr. Bloomberg won't participate in the early primary states such as Iowa and New Hampshire — both of which are holding caucuses…