In 2011 they took only 5 seats in Quebec.  https://en.wikipedia.org/wiki/Results_of_the_Canadian_federal_election,_2011#Quebec  

Still a majority with 166 seats total, though.  The only reason they pulled it off was that the Orange wave in QC shattererd the usual Liberal walk there.  If they'd been able to field a decent candidate, it would  have been a very different story for little Stevie.