 The Democratic trend continued in 2012 when Barack Obama won Jefferson County with 50.34% of the vote, while 48.73% went to Mitt Romney.In 2016, Donald Trump won the county by a very narrow margin over Hillary Clinton, becoming the first Republican presidential candidate to win in Jefferson County since 1972.The area is served by deep-water ports located at Beaumont, Port Arthur, Orange, and Sabine Pass.