Herseth does not have any ratings according to www.vote-smart.org because she is a challenger. She is claiming that she has an A rating from NRA but the Republican candidate has a voting record. You might want to contact the NRA Election Volunteer Coordinator to see if NRA is endorsing a candidate. The EVC is David Conway, Blackhawk, SD, sdssala@cs.com. I will also check my contact at NRA Federal Affairs to find out if he knows what they are doing.