Charles Joseph Bonaparte was an American lawyer and political activist for progressive and liberal causes. Originally from Baltimore, Maryland, he served in the cabinet of the 26th U.S. president, Theodore Roosevelt. He was a descendant of the House of Bonaparte: his grandfather was Jérôme Bonaparte, brother of Emperor Napoleon.

The presidency of Theodore Roosevelt started on September 14, 1901, when Theodore Roosevelt became the 26th president of the United States upon the assassination of President William McKinley, and ended on March 4, 1909. Roosevelt had been the vice president for only 194 days when he succeeded to the presidency. A Republican, he ran for and won by a landslide a four-year term in 1904. He was succeeded by his protégé and chosen successor, William Howard Taft.