Well, we all know the famous OMA-CBS loophole is dead (RIP). However, I noticed something interesting on amtrak's website. I was trying to book omaha-Minneapolis as a normal routing, and it wouldn't do that routing. DEN-MSP is possible but amtrak will no longer allow you to book anything east of Denver to MSP or CBS. This saddens me because I was thinking about doing this trip in coach and I liked all the guaranteed connections.