So does Steve Hildebrand really think he is going to challenge Rep. Stephanie Herseth Sandlin (D-S.D.) in a primary?

At first glance, it seems like a political move by an Obama deputy national campaign manager to get Herseth Sandlin on-board with the healthcare bill.

In threatening the bid, Hildebrand even said he will base his decision on her vote.

"I want to see how she votes on health care," Hildebrand told CNN. "If the vote is very, very close and we lose it or come close to losing it, I will take a seriously (sic) look at challenging her."

Hildebrand, a South Dakota native, also tells CNN that he would only accept money from inside South Dakota, capping donations at $100. He said he hasn't spoken with former Sen. Tom Daschle (D-S.D.) or Sen. Tim Johnson (D-S.D.) about the idea.