2016 has been a big year for protest politics -- not just in the United States, what with Bernie Sanders and Donald Trump getting over 40 percent of primary votes, but also all over Europe and Latin America, where voters have been rejecting the advice of their nations' political, financial and media establishments. Two prime examples were in referendums. On June 23, 52 percent of British voters rejected the advice of Prime Minister David Cameron and other parties' leaders and chose to leave rather than remain in the European Union. On Oct. 2, 50.2 percent of voters in Colombia voted...