Dr. David Colburn wasn’t imitating Richard Nixon Wednesday night at the top of the Peninsular at St. Johns Center, but he was talking politics. A former University of Florida Provost, Colburn currently directs the Reubin O’D. Askew Institute on Politics and Society at UF. He visited fellow Gators in Jacksonville to talk politics and about his new book “From Yellow Dog Democrats to Red State Republicans: Florida and its Politics since 1940.”