Donald Trump apparently doesn't know what the Brexit is

At the end of the month, there will be a referendum to decide if Britain should leave or remain in the European Union. The implications are radical for the United States: Following World War II, the EU brought stability and order to Europe, and as a single unit it has helped the U.S. with geopolitical responsibilities around the world. On the economic front alone, President Obama has urged against a Brexit, saying it could take as many as 10 years for Britain to negotiate new trade deals with the U.S.

"Brexit is not the source of Europe's trend of disintegration," Vox explains, "But if it happens, it could be the beginning of the end for the most successful U.S. foreign policy ever and a serious blow to U.S. efforts to maintain stability and order in Europe and therefore beyond."

In other words, it is a really big deal.

Enter Donald Trump:

"If there's any pattern to [Trump's] conversation, it's that he's vague on all subjects outside himself, his campaign, and the media. Everything else is mere distraction," Michael Wolff writes in The Hollywood Reporter. Perhaps Trump is so vague because he's just been called on and apparently hasn't done his homework. Read the entire profile of Trump in The Hollywood Reporter.