I think Pat Ryan has the most sincere statement.

Joe promised he would only run for one term. I realize the geography is a little scary right now, but, there is a promise to be kept. Others have been preparing during these four years. There are many capable people in the Democratic Party to lead this country. The American people are looking for a capable leader who has confidence in those he lead. I think Joe has to consider those many Democrats that were looking forward to running for president. 

President Biden needs to open his mind and his heart to others in the party that feel differently and may even be hurt by Joe’s broken promise.