U.S. attorneys from N.D., S.D. join Robins Kaplan

Minneapolis law firm Robins Kaplan is opening new offices in both North and South Dakota, and it's recruiting the U.S. attorneys from both states to lead them. The Associated Press reports that Brendan Johnson, the U.S. attorney for South Dakota, will today resign to open a Sioux Falls office for Robins Kaplan. RELATED: The List — Law Firms That follows last week's announcement that Tim Purdon, the U.S. attorney for North Dakota, would leave that post and open a Bismarck office for an unnamed…