An in-depth look at the partnership between Barack Obama and Joe Biden that changed the face of American politics. The 'bromance' between Obama and Biden has been much discussed, but this is the first time the full story of their relationship has been told: from their joint victory in 2008 to their disagreements over policy, and from the rift that formed after Obama supported Clinton's 2015 presidential run to the present day with President Biden in the White House. The Long Alliance examines the past, present, and future of the Obama-Biden legacy - its twists and turns, ruptures and reunions, and how it has shaped and will continue to shape US politics.