3 for 3: PQ the ‘number one political force in Quebec,’ says political analyst CTV NewsParti Québécois wins Arthabaska byelection, deals major blow to Conservatives, CAQ CBCÉric Blais: How François Legault’s CAQ went from fresh alternative to unpopularity Toronto StarMulcair: Shuffling deck chairs unlikely to keep François Legault, CAQ afloat Montreal GazetteAndré Pratte: PQ byelection victory heralds the return of Quebec separatism National Post