Summary: Politico reports that Charlie Cook has sent out a special update to Cook Political Report in which he envisions a scenario in which Democratic House losses could exceed 20 seats in 2010. … One-year retrospective: One year ago today, on the 39th day of his campaign against U.S. Rep. Michele Bachmann for the Republican nomination as House of Representatives candidate in Minnesota’s 6th Congressional District, Aubrey Immelman started his second walking tour — a 50-mile campaign swing down Minnesota Highway 23 from Foley in the east through St. Cloud, Waite Park, Rockville, Cold Spring, and Richmond to Paynesville on the western boundary of the Sixth Congressional District.