I'm sure there is a record of his IQ somewhere. The guy did go to school, after all.
I suggest that he is playing to a different drummer, and not even his family knows the tune.
For one thing, He is a BS artist. This does not make him a liar OR a truth teller. This makes him someone who has no relationship with the truth at all to even KNOW or CARE that he is lying. He is like Rush Limbaugh, only with power.
Pence is probably a more normal sort of politician, but with the kind of morals that simper religious while not preventing him running with Trump.