According to an article in Politico, the GOP's money problems could damage their chances in the midterm elections.
"But while wind at one’s back is a good thing, cash in the bank would be better, and on that score Republicans are lagging behind. Their candidates have raised less than half the $84 million that experts estimate it will take to seriously threaten the Democratic majority in the House. The situation at the National Republican Congressional Committee is even bleaker."The NRCC spent $34 million in the 2008 elections (which went badly for the Republicans, if you remember), yet only has $4 million on hand now for 2010. Might be a little difficult to "take back" Congress with only a fraction of the money they need.