Democrats have to defend plenty more competitive seats this cycle, but a bad November for Republicans could write them into the history books.
Of the nearly 200 appointments made to the U.S. Senate since the ratification of the 17th Amendment, just five had previously served in the legislative body.
Despite crushing the record for the most U.S. Senate matchups between women female nominees in 2018, it is possible the number of women in the chamber will decrease next year.
Incumbents have won all 29 nomination bids during Wyoming’s direct primary era with no challenger winning 30 percent; Barrasso has drawn more challengers in 2018 than any Wyoming senator in history.
Minnesota’s senior senator came less than a percentage point shy of the best showing in a contested Gopher State U.S. Senate primary.
The U.S. Representative now owns the mark for the best showing by a Republican woman running for governor of Tennessee – although her competition is sparse.
No incumbent U.S. Senator has lost a primary in the First State and 33 of 35 incumbents have won renomination over the last century.
Nine state delegations currently have junior senators who are older than its senior senator.
This decade has found the Arizona GOP in the midst of its most heavily contested nomination battles for the office in state history.
Only one previous senator in history has been elected to the chamber without a majority of the vote three times.