Complex sentence: He was reelected as a Jackson Republican to the Eighteenth Congress and as a Jacksonian to the Nineteenth and the Twentieth Congresses and served from December 11,1822, to March 3,1829.
Split into simpler sentences: He was reelected as a Jackson Republican to the Eighteenth Congress. And as a Jacksonian to the Nineteenth and the Twentieth Congresses and served from December 11,1822, to March 3,1829.