Rep. Warren Davidson never planned to be in politics.
In 2016, he had never run for office. He had no name recognition, and he remembers laughing when someone proposed that he try for a vacant Ohio House seat that year.
But the businessman and former Army Ranger bounded into the national spotlight as the candidate who would succeed former House Speaker John Boehner in the district that the old-school Republican had represented for 25 years.
Six years later, Mr. Davidson has redefined the district north of Cincinnati as part of the sweeping reshaping of the Republican Party in the Trump era.