Give him two billion to go live in Rancho whatever. California would be a great place for him and two billion would be a great “investment” by the American people!
I don't think he's going to earn that much money when he leaves office. Two more years of Michelle & Obama will lead to a new acronym: OFS - Obama Fatigue Syndrome.
No doubt he'll make $20-30 million the first couple of years after his Presidency, from his book and speeches. He'll then be forgotten, because his Presidency is so forgettable.