Peracles, At the risk of great wrath, I must say that Booker could never win against trump.  He will never win over white working-class folks, and he also seems thin on specifics other than POC efforts.  I had a very long drive the day that Barr's confirmation hearing took place, and Booker used all of his question times to get Barr to agree to start a Sub-Department on Race in the DOJ.  He spent all his time opining on examples of smaller programs, and Barr happily put him off, saying he couldn't commit to anything like that at the time.  
 

Each time he had a chance, he blew it repeating himself.  There were plenty of things Barr needed to answer for, and Booker gave him a break from any confrontation at all.  It made me mad at the time, and I may have been overly sensitized by that long sound-bite, but it seems that Booker's outlook is not inclusive, and he hasn't thought enough about the big picture, especially internationally.  
 

I don't agree that it has to be a white guy, but the person who the country needs now happens to be one because he can bring in blue collar workers, blacks, and people who simply want a return to rationality.  Biden will allow the international community to take a collective breath of relief.  Who he chooses for VP is critical.  I though Warren, but I'm not sure now.  He would probably choose someone who is not running now, but who can hit the ground running, and take over if necessary.  Stacy Abrams seems like a good fit.