An Evansville high school is gearing up for another campaign visit. Michelle Obama will be speaking at Harrison High School Wednesday morning. The doors will open at 8:30 and the program will begin at 9:30. The event is free and open to the public, but seating is limited and tickets are required. Its available on a first-come, first-served basis. Tickets are available starting this afternoon from 2:00 until 9:00 at the Evansville Obama for America office. Thats on Main street in downtown Evansville.