Complex sentence: Jeb Bush is a Republican politician in the United States and former Governor of Florida from 1999 to 2007, who is a candidate for the Presidency of the United States in the 2016 election.
Split into simpler sentences: Jeb Bush is a Republican politician in the United States and former Governor of Florida from 1999 to 2007. He is currently a candidate for the Presidency of the United States in the 2016 election.