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For Alberta Premier Alison Redford, it’s been one campaign after another.

She won her party’s leadership in a race that took up nearly all of 2011. Months later, she called last year’s general election, one in which she overtook the Wildrose Party in the final week to secure a majority victory. Now another vote is approaching: her leadership review. And it could be a race, pitting Ms. Redford against herself.