Trump's foreign policy is neither isolationist nor interventionist, but America First

Trump's foreign policy is neither isolationist, as Pat Buchanan and Paul Gottfried would like, nor warlike as John Bolton and the neoconservatives would like, but finds a midway path between the two. This does not mean it has no logic. Its logic is 'America First' and, if you like, nationalism. What it certainly is not is about values and Trump has saved a lot of American blood and treasure by, for example, not going to war against Syria or helping the Saudis against Iran. 

This time Trump has made a very bad move, though the real story behind his decision is one that we do not know and probably is linked to Saudi Arabia and Yemen, where a nastier war is taking place in which the UK and US are complicit. Erdogan is blackmailing 'MBS', the Crown Prince of Saudi Arabia, with the tapes of Khashoggi's torture and murder.

Few Republicans support the President's action but one who does is Sen. Rand Paul who tweeted that Trump was fulfilling “his promises to stop our endless wars and have a true America First foreign policy.”