Bills Would Honor Late Minnesota US Rep. Oberstar Minnesota congressional members have introduced bills to honor the late U.S. Rep. Jim Oberstar. The legislation would rename the Chisholm (CHIS'-uhm) Post Office and portions of Highways 35 and 61 in Oberstar's memory. U.S. Sens. Amy Klobuchar and Al Franken and U.S. Rep. Rick Nolan, who now holds Oberstar's seat, introduced the bipartisan bill. Minnesota Reps. Collin Peterson, Betty McCollum, Michele Bachmann, Keith Ellison and Tim Walz signed on as sponsors.