OTTAWA—A Quebec Conservative has quit his post as the party’s deputy leader because he says he wants to play a role in shaping who will next lead the party. Alain Rayes says in a statement that he wishes the party to appoint a leader who presents progressive values, centre−right economics and unite the party around a common objective of replacing the Trudeau Liberals. He says he plans to support a candidate, though doesn’t mention any by name. But by wanting to get involved in the leadership race, Rayes says he has no other choice but to step down from his positions that included being the party’s Quebec lieutenant. The race to replace Erin O’Toole as leader, after caucus members dumped him this week, began in earnest on Saturday when Ottawa−area MP Pierre Poilievre announced his intention to run for the party’s top spot. The shakeup with Rayes led Bergen to …