U.S. President Donald Trump s former pal and one-time staffer Anthony Scaramucci says his ex-boss has big self-esteem issues.

Scaramucci, who infamously served just 10 days under Trump as White House communications director, told ABC Australia his advice to Australian Prime Minister Scott Morrison would be to give the president the spotlight at all times if he wanted to maintain a positive relationship.

The man known as the Mooch suggested Australias leader should mimic Canadian Prime Minister Justin Trudeau s smart handling of the president.

I would tell him [Morrison] to follow the Justin Trudeau model. President Trump is very intimidated by Justin Trudeau because hes a good looking, smart kid and President Trump is like this orange, fat blob, Scaramucci told ABC.

And so hes very intimidated by the way the guy looks. And Justin Trudeau has been very, very smart at keeping his distance from President Trump.

Scaramucci attributed Trumps weeklong obsession with defending his Hurricane Dorian Alabama gaffe despite denial from U.S. meteorologists to his fragile ego.

Again, its his inability to ever be wrong about anything or ever to apologize for anything, said Scaramucci, who recently flipped from staunch Trump defender to all-out enemy. It basically has to do with very low self-esteem, he added.

I mean the poor guy has the self-esteem of a small pigeon.