If Biden's rationale for entering the primary is to win the nomination, his only real chance (without guarantee of success) is for one of the most durable political figures of the last two-plus decades of American politics to be forced out of the race by circumstances. This is closer to the presidency than virtually anyone in America ever gets – but far from a sure thing for Biden.
Joshua Blank, PhD
Joshua Blank, PhD is the research director of the Texas Politics Project at the University of Texas at Austin. He has a bachelor's degree in political science from Boston University and a doctoral degree in government from the University of Texas at Austin. He has played a primary role in most of the major public statewide polls conducted in Texas since 2011.