Complex sentence: Jefferson, who was very popular due to the acquisition of the Louisiana Purchase and booming trade defeated Pinckney in a landslide, winning only 27.2% of the popular vote and carrying only two states.
Split into simpler sentences: Jefferson, who was very popular due to the acquisition of the Louisiana Purchase and booming trade. Pinckney was defeated in a landslide, winning only 27.2% of the popular vote and carrying only two states.