Some of the freshmen in races targeted by late infusions of outside cash. From L-R: Allen West, R-Fla; Joe Walsh, R-Ill.; Francisco Canseco, R-Texas.

It doesn't take a whole lot of money to make a big difference in some House races, and as the days dwindle down to hours before polls close on Nov. 6, some outside interest groups are trying to do just that. Sunlight's weekly survey of independent campaign expenditures found that some congressional contests that hadn't previously registered on our radar were suddenly drawing lots of outside cash late in the campaign. 

Seven of ...