I remember reagan calling his pajamas trees.

The key word is 'act'. The front of playing the noisy, spoilt child works for some policies. Starting trade wars for example. What we don't have the hard figures for is how much has that cost not only moneywise, but prestige and stability.
Governments, diplomacy, international relations are long term interactions. It isn't too bad for the world when a small country destabilises under poor leadership, but humanities biggest economy does that, 7000 million people suffer.

@Sofabeast Do you mean the approximately 7.7 billion world population? Largest economy? May be China depending on the metrics you use. Still, the man is an embarrassment.

@DoctoralZombie Puny American Billions! hahaha. So tiny.