Well, sounded much like his campaign, nothing new, to me.
A mixture of patriotism, nationalism, isolationism - and probably other isms * - but not a lot of substance.
So, America first in everything - can a country remain a world power with that attitude without weilding an even harder fist than it has already done so? Can an iolationist America expect to wield influence in the "soft" areas of trade etc?
What will his attitude be to those multi-nationals who once had a base in America but are now global? Can he tax all of the and survive?
We have heard the words, let's watch the actions with interest.
* later: how could I have forgotten "protectionism"?