President Joe Biden’s announcement Sunday he won’t seek the nomination that he won this year in primaries and caucuses in every state, including where his name wasn’t on the ballot, puts the Democratic Party in uncharted territory just four weeks before delegates are due to hold their national convention in Chicago.
Biden threw his support behind Vice President Kamala Harris to take on Republican nominee Donald Trump, but that tweet alone does not settle anything.
Here’s a look at some of the questions that lie ahead, and things to watch along the way.
