William Henry Harrison

Died within a month of his first term. Harrison only had time for one official act: calling Congress into a special session, which he set to begin on May 31, 1841. He and Whig leader Henry Clay had disagreed over the necessity of the special session (which Harrison opposed, but Clay desired in order to immediately get his economic agenda underway), but Clay’s powerful position in both the legislature and the Whig Party quickly forced Harrison to give in. Harrison was the first president to die in office.