Is the Vice Presidency Irrelevant?

Just what does the vice president do and why does it matter? Acclaimed political journalist and author Jules Witcover explores these questions in his new book, The American Vice Presidency: From Irrelevance to Power. He discusses how the roles and responsibilities of the vice president have shifted and expanded over the years. No longer expected to just preside over the Senate, modern vice presidents have, according to Witcover, gained more power through political maneuvering and manipulation.