Previous polls:
Sept 16-19 Janklow 47, Herseth 40, Begay (L) 1, Und 12 [Mason-Dixon for Argus Leader/KSFY, 800 regular reg, MOE 3.5]
Aug 14-21 Herseth 44, Janklow 41, Und 13 [KELOLand, 600 voters, MOE 4]
I'll be away from the computer today, so you'll have look elsewhere for today's poll numbers!
I would expect a Thune/Johnson poll to come out from KELOLAND later today. It'd be kind of silly to conduct a statewide poll for the House race, and not ask the Senate question, too.
If you want on or off my poll ping list, let me know!