ChinaJoe is a nonstarter. Even Trump could be discarded by American people if he

fails to fulfill the task he claimed himself to be chosen for.

To make it clearer, if Trump backs down or softens his measures against China, he is done.
As to ChinaJoe, AKA Sleepy Joe, he is so obvious a traitor and could by no means become POTUS. Yes, he is the leading candidate for now, but just keep watching. He will drop out at some point.