This week on The House, Kathleen talks to Saskatchewan Premier Brad Wall about his push to prevent the takeover of Potash Corporation. An exclusive look-ahead to the U.S. midterm elections with former Canadian Ambassador to the United States Raymond Chretien. We examine Mark Carney's comments about a possible "abrupt correction" in the housing market with CIBC Chief Economist Avery Shenfeld. And finally, pollster Nik Nanos tells us what lessons politicians could learn from the recent wave of municipal elections.