Here's what you need to know about this fast-moving story:
What's at stake?
The concept of moral authority, used by past presidents at home and abroad, is part of what makes the U.S. president the most powerful person in the world. Now the ability of the United States to influence events around the world is under assault. United Nations Secretary General António Guterres, without mentioning Trump by name, rebuked the nationalism and populism that propelled Trump into office, saying the world must stand up against intolerance and "irrationality."
What is the fallout so far?
It can be difficult to trace a direct line of cause and effect, but relations with other countries already were under strain. After a week of Trump trading threats with North Korea, South Korean President Moon Jae-in insisted his country effectively has a veto over a unilateral attack by the United States on the North. As the New York Times noted, Latin American leaders are telling the United States to butt out after Trump said a "military option" was on the table for Venezuela. Iran has threatened to quit the nuclear deal if more U.S. sanctions are imposed. Iran's supreme leader, Ayatollah Ali Khamenei, tweeted, "If US has any power, they better manage their country, tackle #WhiteSupremacy, rather than meddle in nations' affairs. #Charlottesville."
Why do foreigners care about what happened in Charlottesville?
In some cases it's about self-preservation. British Prime Minister Theresa May, for example, rushed to ally herself with Trump right after his inauguration. But British voters don't share that affection, and with her own popularity ebbing, she now is openly distancing herself from Trump. In a clear reference to Trump's remarks on Charlottesville, May said there was "no equivalence between those who propound fascist views and those who oppose them."
Without the United States, who is there?
Many other countries now consider German Chancellor Angela Merkel the leader of the West. In Germany, where Nazi speech and gestures are curtailed by legal restrictions, Charlottesville and Trump's shifting reactions have been heavily criticized. Merkel did not criticize Trump or the United States by name, but she called the actions by white supremacists “horrifying” and “evil” and blamed one side, saying, “It is racist, far-right violence and clear, forceful action must be taken against it, regardless of where in the world it happens.”
Is the erosion of U.S. moral authority permanent?