DeSantis, the Governor of Florida, is expanding his political travel as his poll numbers slip ahead of an expected presidential campaign. He visited rural north-central Wisconsin on Saturday in a sign of his intent to compete for voters beyond early nominating states like Iowa. Declared candidates, including former President Donald J. Trump, have largely focused on making appearances in Iowa, New Hampshire and South Carolina, three of the first states on the Republican nominating calendar next year. However, DeSantis’s visit to a convention center outside the small city of Wausau, an area that voted heavily for Trump in the last two elections, suggests that the governor is preparing to challenge the former president more directly in a crucial battleground state.