ervice • $5,000 Lockridge Grindal Nauen PLLP, Minneapolis, Minn. Law firm • $5,000 Lynn De Rothschild, New York, N.Y. President and CEO • $5,000 Marathon Oil Company PAC, Houston, Texas Oil/energy • $5,000 Mark A Swift, Kenilworth, Ill. Business owner • $5,000 Martin J. Koldyke, Chicago, Ill. Sports team owner h