Biden is in the race.
In a head-to-head battle with Trump, Biden wins easily. He will win Pennsylvania and will probably win Michigan and Wisconsin. That’s all he needs. (Actually, he just needs Pennsylvania).
If anyone else runs against Trump–especially someone in the so-called “progressive lane”-there is a much better chance Trump will get another term.
So what does the Democratic Party want to do?
If the members of the party really want to defeat Trump, the current candidates should all drop out of the race right now and rally behind Biden. Every time the Democratic candidates beat-up on Biden during the primary season they reduce the chances of their party taking back the White House in 2020.
It is that simple.