"Britain’s stunning vote to leave the European Union suggests that we’ve been seriously underestimating Donald Trump’s ability to win the presidential election."

Says James Hohmann (in WaPo), who clearly wants Hillary to win:

In the short term, the impending fallout from Brexit will make the presumptive Democratic nominee look good. She advocated for Britain remaining in the union; Trump advocated for leaving. The markets are going to tank today, and this vote will set off a tsunami of repercussions that could meaningfully damage the global economy. People’s 401(k)’s might take a shellacking, and interest rates may spike. Any long-term benefits from breaking away will not be apparent until after the general election....

But the results across the pond spotlight five forces that could allow him to score an upset: 1. RESENTMENT OF ELITES.... 2. XENOPHOBIA... 3. ISOLATIONISM... 4. FLAWED POLLING/The polls showed a neck-and-neck race, and surveys in the past few days showed movement in the direction of “Remain” after Cox’s murder. In the end, though, “Leave” prevailed by 4 points.... 5. COMPLACENCY/The Remain campaign was burdened by complacency. Millennials, who overwhelmingly wanted to remain in the E.U., did not turn out at the same rate as older voters, who wanted to leave...