Democratic Primaries

Other than exposing hostile political agents of course.

As for on to the GE, Biden moved on weeks ago and has been campaigning against Trump/Repubs ever since.

Btw, you can take it to the bank that none of the experts in the party or Biden campaign are at all surprised by Sanders' intent to continue causing trouble. The surprise would be if he stopped because those experts include psychiatrists and political psychologists and sociologists who had Sanders' number a long, long time ago.

They also have ongoing intelligence reports on what Russia and other hostile states are up to. Sanders remains a Russian asset and beneficiary who can keep his place in the national spotlight as long as he remains a problem to us.

Btw, he knows that if he ever stopped his base would drop him as a traitor, Russia would stop its support -- at least, the media would turn off the spotlight, important people would stop calling, and Democratic officials would say something blandly respectful if someone mentioned him. The end.