Former Vice President Joe Biden has referred to himself as "middle class Joe" throughout his political career, and used to regularly joke about being the "poorest person on Congress."
Those terms no longer apply.
Biden and his wife, Jill, have together earned more than $15 million since Biden left office. That's according to tax returns and other financial disclosure forms released by Biden's campaign on Tuesday. The bulk of the Bidens' earnings come from book sales and paid speaking engagements – two routine sources of income for former high-ranking public officials.