Complex sentence: Plamondon was the Bloc candidate in his riding for the 2015 Canadian general election, and was the only Bloc MP elected in 2011 to be running under the party banner again, he was re-elected to a tenth term in the House of Commons.
Split into simpler sentences: Plamondon was the Bloc candidate in his riding for the 2015 Canadian general election, and was the only Bloc MP elected in 2011 to be running under the party banner again. He was re-elected to a tenth term in the House of Commons.