 In the 2008 presidential election Barack Obama received 74.80 percent of the county's vote.In all the Democratic candidate consistently received more than seventy percent of the county’s vote between 1956 and 2012, although Hilary Clinton’s 2016 result was the weakest by a Democrat since at least Adlai Stevenson II.After the initial election returns in the 1948 Democrat runoff primary election for U.S. Senate, Duval County added 425 votes for Lyndon B. Johnson over Coke R. Stevenson.