 Only twice since the Civil War has the county selected a Democratic presidential candidate, and only Lyndon Johnson in his 1964 landslide has gained an absolute majority for the Democratic Party.In 1984 Venango County actually voted fractionally more Democratic than the nation at-large due to hostility towards Reaganomics in industrial districts, but by 2016 Donald Trump had gained 68.1 percent to Hillary Clinton's 26.8 percent – figures which were long typical of the county.Pennzoil and Quaker State left the Venango area for Texas.