No problem USA! Go back on the Iran deal, go back on the Paris climate deal, go back on TPP. Just don't expect that anyone believes you anymore.
Surely, you realize the US earns its status on the global stage via its violent & powerful military, and the PetroDollar? It is foolish to suggest that the US expects other nations to possess any pretense of trust.
You don't have to believe me, because after all I'm just some dumb American. But you may want to take a good look in the mirror and ask yourself who is being the true "American" here.