There’s a whiff of desperation to this move. It’s not hard to see why: If Sanders, who leads in the delegate count, performs well in delegate-rich states such as Texas and California, he might be unstoppable on his way to winning the nomination at the convention this summer.
That’s an unacceptable outcome to a powerful bloc of the Democratic Party. It’s why Buttigieg and Klobuchar have moved so quickly to endorse Biden. It’s why Sanders opponents started Super PAC called the Big Tent Project to run advertisements criticizing Sanders as a radical who would lose to Trump.