After a week spent trampling the international order, Trump capped his performance by giving Vladimir Putin the benefit of the doubt.
Efforts to keep Trump's itinerary as tight and cloistered as possible failed to avoid a classic diplomatic calamity.
Trump's assault on the global trade system could be just a prelude to his next moves.
The 'rules-based international order' that Trump is supposedly tearing up is an ahistorical fantasy.
While not exactly surprising coming from the Trump administration, backing out of a major UN body is bound to have serious consequences.
Without strategic clarity from the US, the Saudis and their allies are under little pressure to thaw their frozen relationship with Qatar.
A remarkable year on the Korean peninsula has been marked by both bitter enmity and genuine goodwill. Now, the tension is being ratcheted up again.
Donald Trump has always traded on his image as a master dealmaker – but many deals have been done with North Korea before.
Reportedly passed over for secretary of state because of his moustache, John Bolton has made it into Donald Trump's administration at last.
Relations between the US and Africa are unlikely to improve while Trump remains president. But that doesn't mean the continent should remain passive.
The goal of the summit should not be the nuclear disarmament of North Korea.
Thanks to South Korea, there is a chance for peace with North Korea. Whether the Trump administration can take it is another matter.
Donald Trump doesn't have one foreign policy – he has several, and they all clash.
As tensions between the US and Russia escalate, both sides are developing technological capabilities, including artificial intelligence that could be used in conflict.
Turkey's priorities in Syria just don't match the US's – and its increasingly authoritarian domestic politics don't help.
Surveys of Iranian public opinion from the University of Maryland suggests that Trump's strategy on the nuclear deal – no matter how you interpret it – is based on wishful thinking.
What should America's role in the world be? A lot of people have an answer, but few of them agree.
Donald Trump has put translators and interpreters the world over in an ethical quandary. Sad!
A new candidate to be the US assistant secretary of state for Africa has ideas that are both refreshing and worrying.
By rolling back chunks of the Obama deal with Cuba, Donald Trump is giving up just the sort of opportunities he promised to seek out.