Complex sentence: Alexander was unchallenged in his Liberal preselection for the 2013 election when he was re-elected as Member for Bennelong, increasing his margin from 3.1% to 7.8%.
Split into simpler sentences: Alexander was unchallenged in his Liberal preselection for the 2013 election. In 2013 he was re-elected as Member for Bennelong, increasing his margin from 3.1% to 7.8%.