I think that there are a lot of people in the upper level of both parties playing "wait and see," watching to see what Biden and Trump do. If Biden decides to not run again, the Dem flood gates will open up and everyone will jump in the game forming exploratory committees...Pete, Kamala, AOC, and all the others who are in the press all the time, and those that ran last time, will jump in the race. On the R side, everyone is watching Trump. He throws his hat in the ring, and a lot of R candidates will stay out. It will cost too much to campaign against him.