There can be no honest dispute about the amount of ENTHUSIASM among Donald Trump’s supporters. It is a steady 11 points more than can be found among Hillary Clinton supporters.Now newly discovered research reveals that this very high level of enthusiasm, also called “voter intensity,” has been in place even for a generic Republican presidential candidate since last January. In late January, the Tarrance Group conducted a survey and its head, Ed Goeas was startled by the level of voter intensity among Republicans. They discovered that there was an 11 point “intensity” gap among White Republicans as compared to that...