Complex sentence: She applied unsuccessfully for reinstatement to the Tory caucus, and was defeated while running as an independent, in the 2011 election by Kellie Leitch, her replacement as the riding's Conservative candidate.
Split into simpler sentences: She applied unsuccessfully for reinstatement to the Tory caucus. Guergis was defeated while running as an independent in the 2011 election by Kellie Leitch, her replacement as the riding's Conservative candidate.