Nostalgia isn't what it used to be, Margaret.

In any case, most nostalgia for Obama went up in smoke with an Affordable Health Care Act which is increasingly unaffordable,  borrowing more money than all 43 previous presidents combined to fashion one of the slowest economic recoveries in history, premature evacuation of forces in Iraq and Afghanistan and his phony red line in Syria and his backing of the Muslim Brotherhood in Egypt and other mistakes in a foreign policy encouraging Islamists and making America and the west less secure than ever, pandering (usually unintentional) to the race baiters and hustlers at home that has made America more racially divided than at any time since the early 60s, and an aloof and dismissive attitude to congress and preference to rule by executive decree and to ignore laws he didn't happen to like.

But Barack is a good family man setting a good personal example and is very likable and quick with a quip.
 
He is a natural for late night talk TV.