No one really at the moment...
Obama's voice probably carries most weight at the moment without being a leader
It is definitely not Harris...
Sanders and AOC are one powerful wing of the progressive movement and Mandani's performance in NYC will be a litmus test for them.
Newsome main thing is that he can wind up the thin skinned Trump...
But the guys I see coming through are the Andy Bashear, Josh Sharpie, Jon Ossify, Mark Kelly... Talarico is among this ilk... They seem to be very competent, moderate and popular in conservative areas...
My guess is that Andy Bashear is the one to watch... He is a GOP nightmare to contest against...