The November election will dominate this fall’s nonfiction season, with entries by pollsters and Web loggers, as well as more seasoned authors, analyzing every possible American future. The books we look forward to take a longer view, examining the past as much as the future. “Angler: The Cheney Vice Presidency” might once have been received as an intervention in current affairs, but Pulitzer Prize winner Barton Gellman appears to have written a book of history, more concerned with Vice President Cheney’s overall legacy than with the enmities of the next election.