The History of Successful Congressional Write-In Candidates. The Republican efforts to keep the CD-22 seat, recently vacated by former US House Majority Leader Tom DeLay, face long odds. In US history, only five times has a general election to Congress been won by a write-in candidate. US Senator Strom Thurmond of South Carolina won as a write-in in 1954, but was already widely known and popular figure, having previously served as Governor, as the Dixiecrat candidate for President in 1948, and was a leader of the South’s resistance to integration (Brown v. Board of Education having been decided earlier that...