Complex sentence: In 2003, Michael W. Tucker was elected mayor of the city of Lockport; he was subsequently reelected in 2007 and 2011, however resigned in 2014 instead of serving his third four-year term.
Split into simpler sentences: In 2003, Michael W. Tucker was elected mayor of the city of Lockport; he was subsequently reelected in 2007 and 2011. However, he resigned in 2014 instead of serving his third four-year term.