 Opposition to the "Yankee" Republican Party and that party's Civil War meant that Jasper County voted solidly Democratic until isolationist sentiment drove its voters to Warren G. Harding in 1920.Since the New Deal, the county has shown a steady trend away from the Democratic Party due to major shifts in that party's views – initially on economic policies, and since the 1990s on social issues.Only one Democrat – Lyndon Johnson in his 1964 landslide – has won a majority since 1940, and as is typical of the Upland South, Barack Obama in 2012 and Hillary Clinton did far worse than any previous Democrat.