In 2019, Elizabeth Warren was leading in the primaries (and both she and Sanders were ahead of Biden), until Super Tuesday when a bunch of the centrist candidates dropped out together and jointly endorsed Biden, in order for them not to go to a contested convention.
Not in 2016.
In 2019, Elizabeth Warren was leading in the primaries (and both she and Sanders were ahead of Biden), until Super Tuesday when a bunch of the centrist candidates dropped out together and jointly endorsed Biden, in order for them not to go to a contested convention.