So far, Trump wins open primaries and Cruz wins closed … and the calendar is starting to change toward more closed primaries

Following the South Carolina primary, an interesting article by Michael Harrington went around Facebook that speculated that Donald Trump’s victory in the South Carolina primary was attributable to Democrats voting in the Republican (open) primary. One of the good things about Harrington’s article is that he put out a testable hypothesis — that turnout in the Democratic primary a few days later would be less than 390,000. In fact, it was 367,000. Harrington concludes that had South Carolina had a closed primary, Ted Cruz would have won the primary there.
Read more at the Washington Post