Heller is the only Republican among the 15 U.S. Senators who serve states in which their party holds a minority of U.S. House seats; a dozen (including Heller) are up for reelection in 2018.
If a handful of toss-up races all end up in the Democratic column, the party will have its strongest showing in races for governor since its formation nearly 190 years ago.
New Hampshire has both the largest (179 in a row) and longest (since 1856) streaks of fielding U.S. House nominees from both major parties; Minnesota, Idaho, and Montana also have streaks north of 100.
Midwestern states account for 40 percent of the cumulative female lieutenant gubernatorial service in U.S. history along with the three longest current streaks (Minnesota, Iowa, and Wisconsin).
Kasich, Cruz, and Carson received the most votes as former White House hopefuls; 10 GOPers won more votes as ex-candidates than when they were still in the race.
Two states usually forgotten at the end of the primary calendar were treated to their most competitive Democratic primaries in state history.
Unlike their GOP counterparts, Democrats have few states that have consistently backed the party’s eventual nominee over the last 40+ years.
Presumptive GOP nominees have averaged more than 75 percent of the primary vote after their main challengers have exited the race.
If the nation’s six most competitive seats flip in 2016, the upper legislative chamber will tie its mark for the lowest number of states with split delegations in the direct election era.
Just two of the 25 Democratic gubernatorial nominees in Montana over the last century did not face a primary opponent as well as five of 50 major party nominees.