Abdication of American global leadership. Trans Pacific Partnership was created to attract Asian countries to align with US interest and not China. Now China is arm twisting its neighbors to bow to them. NATO not only insures military unity, but is also a major channel to sell US military hardware. Instead of just focusing on the funding imbalances (which I agree with), Trumps comments are causing a deep rift and Europe may no longer purchase US arms. EU economy hitched to the US, but now there is feeling they should go their own path. Paris Accord is a purely voluntary, non-binding, gentlepeople's agreement to deal with pollution and climate change. It was so loose it really cannot be called a promise and as such does not need congressional approval because it does not force any restrictions. It is like invited to community picnic and you bring your own food. The grand irony is the US green energy industry is creating jobs, estimated 12x faster than other energy systems so the US could achieve PA goals regardless, except now the US will be ignored as some other country will be chosen as the Green champion, maybe even China as they spend billions to counter their deadly pollution issues. Regardless: Trump is creating power vacuums around the world in various topics that other countries will fill, and and America exceptionalism will fade. One cannot be a leader alone.