There is evidence that the Democratic base is starting to wake up and focus on the mid-term election, which helps candidates like Sestak running in blue states and accounts for some of the closure. But, the Democratic Senatorial Campaign Committee might deserve much of the credit for Sestak's progress. Since August, the DSCC has spent nearly $4.2 million on Sestak's behalf, almost all of it on television ads attacking Toomey. Other groups sympathetic to Sestak have spent another $600,000 for a total of $4.8 million.Republicans have invested in Toomey's candidacy, but have not matched Democrats' total. Overall, a dozen Republican groups have combined to put $3.9 million into the race. The National Republican Senatorial Committee has spent $897,500 in IE funds, but is expected to put more money in now that the race has closed.