Mississippi Republican Sen. Cindy Hyde-Smith won the state's special election runoff Tuesday. Appointed when former Sen. Thad Cochran resigned last spring, Hyde-Smith will now serve out the remainder of his term. The seat will be up again in 2020.
With this result, the 2018 Senate elections have come to a close. The GOP maintains control, with a net gain of two seats in the midterm elections. They will go into 2019 with a 53-47 edgea. Overall, six seats changed hands. Republicans won seats in Florida, Indiana, Missouri and North Dakota, while Democrats were able to take the seats in Arizona and Nevada.
Note that you may hear that Republicans gained one seat (not two) during this election cycle. This is accurate, with the difference attributable to the 2017 special election in Alabama that saw a Democratic gain.