Nixonland by Rick Perlstein

George Wallace: American Populist

Also, totally unrelated to the historical era in which you specified, but if you want a great general overview of 1810-50 American politics “Heir’s to the Founders” by H.W Brands covers Daniel Webster, Henry Clay, and John Calhoun’s careers. The book goes through the 1812 era right up until 1850.

Hasn’t gotten to the reformation yet but it is doing a very good job over viewing late 13th Flemish art. It is a very general book.

Currently reading Augustus by Anthony Everett, Will Durant’s The reformation and “House of the dead, Siberian exile under the Tsars”.