This year's presidential campaign seems to be one of a kind, but it is really part of a bigger picture that stretches beyond the U.S.
Donald Trump's message to anyone who doubts he can win: Look at what happened in the United Kingdom last summer. The vote to leave the EU in June was fueled by some of the same issues that Trump is tapping.
"Believe me. This is Brexit times five. You watch what's going to happen," he said last month.