A professor in the History Department, he specializes in the study of the government and military of the Civil War era. He is the author of Sacred Debts: State Civil War Claims and American Federalism, 1861-1880 (Fordham University Press, 2003) and a co-editor of Warm Ashes: Issues in Southern History at the Dawn of the Twenty-First Century (University of South Carolina Press, 2003). Sinisi is currently at work on a book-length manuscript that examines Sterling Price's Confederate invasion of Missouri in 1864.
The faculty advisor is responsible to the president of the college for insuring adherence to the Honor Manual, ranging from following time tables to being present at each hearing to advising cadets found guilty of the post-conviction process. The advisor works closely with the vice chairman for investigations as accusations come in, providing guidance and assistance as needed as the vice chairman makes the crucial decision of forwarding cases to full hearings. At hearings, the faculty advisor assists the chairman with any procedural matters and objections of substance. The advisor, chairman and vice chairman for investigations are charged by the Honor Manual to investigate improper question allegations.