Ballotpedia: “One-hundred and five of the 6,073 state legislative races in 2018 were decided by fewer than 100 votes. Ninety-eight of the 105 races were in state house chambers, rather than state senate chambers.” “Partisan control changed in 54 of the 105 races. Thirty-six of the partisan changes (34.3 percent of the 105 races) were to Democrats, and 18 (17.1 percent) were to Republicans.