After more than five-dozen failed attempts to flip a seat, Democrats won the most competitive election for the office in South Carolina in more than 125 years.
Democrats and Republicans in 18 states have now set or tied their longest gubernatorial winning streak in party history.
Over the last 50 years, 41 losing nominees in special elections landed a rematch in the subsequent general election – only six were victorious and just two since 1981.
Next year will be the 55th time in which a state simultaneously hosts elections for each of its U.S. Senate seats; in only eight cases has the electorate split its vote between two parties.
Only one region of the country is regularly seeing both parties win U.S. Senate seats in the vast majority of its states.
No appointed US Senator has ever won a primary runoff and only two incumbents who placed second in the initial primary have done so.
Record partisan winning streaks in races for governor can be extended, broken, or tied in 15 states holding elections in 2018.
In an unusually competitive race, Democrats failed to pick up a GOP-held seat in the Palmetto State for a nation-leading 61st election in a row.
Palmetto State Democrats have failed to flip a GOP-held U.S. House seat in a nation-leading 60 consecutive contests.
Not since before World War II have five U.S. House special elections been conducted during the first six months of a new Congress.