For the first time in decades, no Bush, Clinton, or Biden on the presidential ballot.
Joe Biden, previously running for president in 1988 and 2008, dropped out this year.
Ronald Reagan and George H.W. Bush won in 1980; Bush later became president.
Bill Clinton defeated Bush in 1992, then George W. Bush won in 2000.
George W. Bush served two terms until 2008; Hillary Clinton ran in 2008 and 2016.
July 21 saw Biden’s historic exit from the presidential race.
Public pleas from Democrats and celebrities influenced Biden's decision to withdraw.
Age concerns were a significant factor in Biden’s choice.
Biden’s exit marks a major shift in presidential election history.