During the Civil War, the southeastern part of the state aligned with the Union and tended to support Republican candidates thereafter, while the central and western portions remained heavily Democratic even into the following decades.
Since 1952, voters in the Commonwealth supported the three Democratic candidates elected to the White House, all from Southern states: Lyndon B. Johnson from Texas in 1964, Jimmy Carter from Georgia in 1976, and Bill Clinton from Arkansas in 1992 and 1996.
But by the 21st century, the state had become a Republican stronghold in federal elections, supporting that party's presidential candidates by double-digit margins since 2000.
At the same time, voters have continued to elect Democratic candidates to state and local offices in many jurisdictions.
[2] Despite the Democratic voter registration advantage, the state has elected Republican candidates for federal office routinely since the beginning of the 21st century.