James Thomson Callender was a political pamphleteer and journalist whose writing was controversial in his native Scotland and later, also in the United States. His revelations concerning George Washington, Alexander Hamilton, and later Thomas Jefferson, led to his marginalization politically. His contemporary reputation as a "scandalmonger" has overshadowed Callender's frequently perceptive analyses of revolutionary events. Callender campaigned against what he saw as the continued influence of monarchical ideas in American society, and claimed that Adams, Washington and Hamilton planned to impose a titled aristocracy and hereditary positions in the Senate and the Executive. In the United States, he was a central figure in the press wars between the Federalist and Democratic-Republican parties. After Jefferson won the presidency, Callender solicited employment as a postmaster, which was denied by Jefferson. Callender then published existing rumors claiming President Jefferson had children with slave Sally Hemings.