Complex sentence: As its longest-serving member of the House of Commons, Plamondon was also recognized as Dean of the House after the election; he acknowledged it was "a bit funny" that an MP from a separatist party would hold this position.
Split into simpler sentences: As its longest-serving member, Plamondon also became Dean of the House of Commons after the election. He acknowledged it was "a bit funny" that an MP from a sovereigntist party would hold this position.