Endorsements from high-profile Democrats, including former candidates, have been crucial in Biden's recent surge of success. The night before Super Tuesday, former candidates Pete Buttigieg and Amy Klobuchar, attended a rally for Biden and announced their endorsements. Former Texas Representative Beto O'Rourke also announced his endorsement at that event.
After Super Tuesday, Mike Bloomberg also endorsed Biden after dropping out of the race. Since then, several other high profile Democrats have announced their endorsements of Biden, which could give him a huge boost headed into Tuesday's primaries.
Here are a few of the most important endorsements Biden has received since Super Tuesday.