sentences:  Roosevelt graduated from Columbia College in 1815 and was admitted to the bar in 1818, becoming a partner of Peter Augustus Jay (son of John Jay), with a practice in New York City.An active Democrat, he campaigned for Andrew Jackson for president in 1828.He was elected alderman in 1828 and 1830, was a member of the New York State Assembly in 1835 and 1840, and served in the United States Congress from 1841 to 1843, but declined to seek reelection.