Once a Republican bastion, Wilton has become increasingly Democratic in recent years. In 2008,Wilton voted for Barack Obama, who became the first Democrat candidate for U.S. President to carry the town since Lyndon B. Johnson in 1964. The town flipped back in 2012, voting for to Mitt Romney, a former governor of neighboring Massachusetts. In 2016, voters in Wilton delivered a 22-point margin of victory to Hillary Rodham Clinton, the best performance for a Democratic presidential nominee in the town since Johnson in 1964. In 2019, Republicans won the majority of local offices. In 2020, the town gave a 33 point margin to Joe Biden.