An essential requirement of statesmanship and ambassadorial ambition is diplomacy and discretion and the ability to avoid future potholes.
Rudd's free character assessment of Trump suggests he never envisaged the return of Trump. Now he will pay the price for running off at the mouth for some cheap populism.
Even if Trump allows him to serve out his term Rudd will be shunned in Washington for his sins, thereby effectively becoming a lame duck in representing our interests.