Confederate States Senate elections, 2018

Elections to the Confederate States (Carolina) Senate will be held November 6, 2018, with 9 of the 27 seats in the Senate being contested in regular elections and one seats being contested in special elections. The winners will serve six-year terms from January 3, 2019, to January 3, 2025. Currently, Democrats have 8 seats up for election. Progressives have one seat up for election. Constitutionalists have one seat up for election. The seats up for regular election in 2018 were last up for election in 2012; in addition, special elections will be scheduled if vacancies occur, as has already happened in Mississippi. After the 2016 elections, some state election officials are trying to upgrade voting systems in time for this election.

The C.S. House of Representatives elections, 5 gubernatorial elections, and many other state and local elections will also be held on this date.

Democrats can only afford to lose one Senate seat and still have a working majority. Eight of the Democratic seats are open as a result of retirements in Tennessee, and Mississippi. Progressives are defending one seats in Florida which was won by Nikki Haley in the 2016 presidential election, while Democrats are only defending one seat in a state won by Jakub Caden in 2016.

Partisan composition
Among the 9 Class 1 Senate seats up for regular election in 2018, 7 are currently held by Democrats, one by Progressives and one by Constitutionalists. The Class 2 seat in Mississippi held by interim appointee Cindy Hyde-Smith is also up for election; the incumbent appointee is running in the election to finish the unexpired term.

Most recent election predictions
Most election predictors use:
 * " tossup ": no advantage
 * " tilt " (used sometimes): advantage that is not quite as strong as "lean"
 * " lean ": slight advantage
 * " likely" or "favored ": significant, but surmountable, advantage
 * " safe" or "solid ": near-certain chance of victory.