I read "Great Triumvirate " many years ago mostly cause of Acedemic Historian and author Merrill Peterson ,who was famous for his works on Thomas Jefferson .I remember feeling he strived to be fair to all 3 subjects ,though Calhoun because his race beliefs was difficult. Peterson is an excellent author and writes great books. I've also read Brands a historian from University of Texas , though I haven't read this specific book,Triumvirate is from 1987 ,Founders is 2018,personally I favor Triumvirate just enjoyed reading the author easier.