Issa was probably doing the old DC two step. First of all he probably knew what the CIA was doing re investigating Di Fi and probably her husband.
Then, when DiFi blows up, Issa does what you noted.
Issa probably slept very well that night after his act of shame.
I keep wondering what Issa has to hide——that dumb act of his is wearing thin.
Issa’s a California boy——and probably knows plenty.
The CIA better get ahold of his emails, as well.