This man's Postmaster General, Cave Johnson, is credited with the introduction of postage stamps and street corner mailboxes. This president's Congress passed the Walker Tariff, and he had earlier defeated John Bell in a bid 
This man's Postmaster General, Cave Johnson, is credited with the introduction of postage stamps and street corner mailboxes. This president's Congress passed the Walker Tariff, and he had earlier defeated John Bell in a bid for Speaker of the House. This man's administration negotiated with Lord Aberdeen, resulting in the abandonment of the "54-40 or fight" slogan for control of the Oregon Territory. After John Slidell failed to purchase California and New Mexico, the Mexican-American War was fought during this man's presidency. For 10 points, name this "dark horse" winner of the Election of 1844 who was nicknamed "Young Hickory" and succeeded John Tyler.
This man's Postmaster General, Cave Johnson, is credited with the introduction of postage stamps and street corner mailboxes.
James K(nox) Polk