The turnout is especially noteworthy for Republicans. Data from the United States Election Project, which compiles and analyzes election results and statistics, shows Republican voting in primaries and caucuses is up across the board.
States like Idaho, Virginia and Missouri have seen increases of more than 200 percent in Republican turnout compared to 2012. Traditionally blue states have also seen spikes relative to 2012. Massachusetts and Maine, for example, had increases of 72 percent and 220 percent, respectively.
Though Democrats in many states have not flocked to voting centers in the same numbers as Republicans, their turnout in 2016 has largely outpaced levels from the last presidential election, during which just 6.3 percent voted in primaries, according to Pew.
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