He maintains a dignified silence when nudged for his view of Donald Trump.
But President George W Bush apparently dropped his diplomacy at the billionaire's inauguration, according to theDaily Mail.
New York Magazine reports that after The Donald finished his speech, which was peppered with surprises including "American carnage", Bush made no effort to hide what he thought of it.
"That was some weird s***," he said, according to three sources who heard him.
The uninhibited reaction is a far cry from the reluctance Bush showed to tear in to the president earlier this year during an appearance on Jimmy Kimmel Live.