John Tyler

Tyler’s presidency is best known for establishing the clear line of presidential succession and for asserting the executive’s veto power against his party’s legislation. His repeated vetoes of Whig economic bills and rejection by party leaders left him politically isolated and reshaped expectations about presidential authority.

On foreign policy he achieved durable results, including the Webster–Ashburton Treaty (1842) settling northeastern borders and the passage of a tariff that restored federal revenue. In the final days of his term he secured congressional approval of Texas annexation by joint resolution; after leaving office his later alignment with Southern secessionists further complicated his historical reputation.

First vice president to fully succeed to the presidency, establishing the Tyler precedent; repeatedly vetoed Whig bills to reestablish a national bank and was expelled from the Whig Party; negotiated the Webster–Ashburton Treaty (1842) resolving U.S.–British border disputes; signed the Tariff of 1842 to restore federal revenues; secured congressional approval and signed the 1845 joint resolution for Texas annexation; appointed prominent secretaries of state including Daniel Webster and John C. Calhoun