It's the "Co-President" model -- two for the price of one!
Or maybe three if you believe Joe's "President-elect Harris".
Absolutely correct.
Jill has indicated very strongly that she intends to stand in Joe's place when he is incapacitated, which is essentially 100% of the time.
Jill is going to be fighting off Kamala and her gang for power. Eventually she will lose when Joe either resigns, dies, or is expelled from office.
Or he becomes so much more goofy than he already is, and is no longer able to function in public at all.
His inauguration is going to be funnier than an SNL skit. He will be the babbling moron that he is.