Robert Altman and Garry Trudeau's much anticipated follow-up to their groundbreaking 1988 mini-series, following documentary filmmaker Alex Tanner on her quest to probe the very soul of the modern politician. As her father, Jack Tanner, interviews present day political figures, the documentary approach of the series blurs the boundary between the factual and the dramatic. Part political satire, part wry portrait of an independent filmmaker, Tanner on Tanner satirises and salutes the world of American politics.