For ten points, name this 11th president who oversaw the Oregon Treaty of 1846 and the Treaty of Guadalupe Hidalgo.
He was Speaker of the House from 1835 to 1839 and later Governor of Tennessee. As president, he established the nation's first independent treasury and oversaw the admission of three new states, including Wisconsin and Iowa. The first "dark horse" candidate, he secured the Democratic nomination over Martin Van Buren and defeated Henry Clay for president. For ten points, name this 11th president who oversaw the Oregon Treaty of 1846 and the Treaty of Guadalupe Hidalgo.
He was Speaker of the House from 1835 to 1839 and later Governor of Tennessee.
James K. Polk