Preventing a dedicated American enemy to get nukes, an enemy of which the American intelligence agencies said there is currently no sign they work to get nukes and with which you had deals to prevent them from doing so.

Sorry, but all you did was:

1. Showed them and the world that treaties with you are worth nothing

2. Showed them and the world, to gain the respect of the US, you need nukes. Decades of loyalty, treaties or good partner have been shown to be worth nothing, while being an authoritarian dictatorship and having nukes are respected.

3. Showed them and the world that having US bases on your soil is a liability and not a protection.

All in all if you were US president and your task was to destroy the US' standing in the world, there is not much more you could have done.