is it possible that President Obama can convince Johnson (SD) to stay put? He represents one of those seats that you have to milk for as long as possible to stay in the majority. If a better candidate can run in his place, then I would be fine with him retiring. But he's the only viable democrat left in South Dakota. I guess you could say Sandlin might be a good candidate but the jury is still out on her.
Rounds wasnt even all that popular when he left office. He certainly isnt a Hoeven. It would be at worst a tossup if Johnson stayed in.
If Johnson does decide to hang it up, Herseth-Sandlin would be a very good recruit. She only barely lost in 2010 wipeout and had high favorable ratings even after she was defeated.
Sandlin lost to Noem, who strikes me as a flake. Rounds would be a much tougher person to face than Noem.