Complex sentence: In the presidential election, Pierce and his running mate William R. King defeated the Whig Party ticket of Winfield Scott and William A. Graham by a 50 percent to 44 percent margin in the popular vote and 254 to 42 in the electoral vote.
Split into simpler sentences: In the presidential election, Pierce and his running mate William R. King won by a landslide in the Electoral College. They defeated the Whig Party ticket of Winfield Scott and William A. Graham by a 50 percent to 44 percent margin in the popular vote and 254 to 42 in the electoral vote.