Grant ran for mayor of Boynton Beach in 2016, alongside incumbent mayor Jerry Taylor, and three other candidates. Taylor and Grant placed first and second respectively in the first round and advanced to the runoff. Grant earned 57% in the runoff, defeating the incumbent.[3][4] Grant won re-election in 2019, winning 62% of the vote against three other candidates. Grant ran as an independent candidate in the 2022 United States Senate election in Florida against incumbent Republican Marco Rubio, placing fourth behind the incumbent, Democrat Val Demings, and Libertarian Dennis Misigoy.[5]