On the Democratic side of the aisle, Rep. Ed Perlmutter, D-Colo., paid a total of $39,000 for surveys by a firm called Frederick Polls. Reps. Kurt Schrader, D-Ore., Niki Tsongas, D-Mass., and Sanford Bishop, D-Ga., all paid more than $20,000 for surveys in their districts, though they are seen as safer bets for re-election. Some of Democrats' best candidates aren't showing their cards either. Former Rep. Dan Maffei, D-N.Y., paid Global Strategy Group $25,750 to test his comeback bid (Though a Democratic poll released today shows he's leading Rep. Ann Marie Buerkle by four points). Former Iowa First Lady Christie Vilsack, running an uphill campaign against Republican Rep. Steve King, spent $25,800 to poll her district without revealing the results. Benishek's campaign said they don't release polling. Maffei's campaign said the same, though they pointed to a survey released last week by the pro-Democratic House Majority PAC. Other campaigns did not respond to messages seeking comment. Both the Democratic Congressional Campaign Committee and its counterpart, the National Republican Congressional Committee, are spending tens of thousands of dollars on their own polling. The DCCC spent more than $120,000 on four polling firms last month, the reports show, while the NRCC spent more than $93,000 spread among eight firms.