I wonder how often Trump has consulted Obama for his "wise counsel". Or Obama consulted Bush for that matter.
I'd like to pose this as a more general question here, but with narrow enough scope to be answered. The broader question would be as posed in the title, but perhaps to focus on specific criteria, the question would be, "Starting from the present and working backwards, who was the most recent US president to regularly consult a former president?" (as some of the founding fathers would seem to fit this criteria).
I briefly searched for this online but only saw articles like this USA today one which seem to imply (at least in modern times) presidents only really meet during a transition period.