Reform Party leader Preston Manning in 1992, during more optimistic times. CP Image Archive. The Line is partnering with Lead Not Leave to provide credible arguments for why Alberta should stay in Canada. Click on the link below to learn more about the initiative. By: Ken Boessenkool I confess, I am getting tired of the selective amnesia. To hear Alberta separatists talk, one might think that the last 20 years of conservative activism had simply never happened in this country.