Complex sentence: He resigned his seat in the legislature on September 30,1994 to campaign for mayor of Markham, and was the only member of the 1990 Ontario PC caucus not to seek re-election to the legislature in 1995.
Split into simpler sentences: He resigned his seat in the legislature on September 30,1994 to run for mayor of Markham. He was the only member of the 1990 Ontario PC caucus not to seek re-election to the legislature in 1995.