Speculation swirls as Caroline Mulroney says she is done with politics. For now

Scott Stinson/National Post: There are reasonable explanations for such speculation. In Ottawa, the federal Conservatives continue to lag in the polls behind the resurgent Liberals, while Pierre Poilivere’s pivot toward a more conciliatory tone lasted about as long as it has taken to write this sentence. He’s back into his combative comfort zone, and while there is no evidence of an organized effort to remove him anytime soon, if he was ever going to face a challenge from someone who wanted to take the Conservatives back into the more moderate mindset of the Mulroney years, a literal Mulroney would be a good start…