Why would he in a letter praising Biden for being a patriot and a team player?
There's plenty of time to endorse and stomp for Kamala. Some of y'all ain't sh*t, you done forced this man to step down and go play shuffle board while being one of the most political successful incumbents in our lifetime. Then y'all want full throated endorsements of his successor before they can even medically treat the knife in his back.