On the offensive

When looking at Barack Obama's website, I began to notice that all that's being talked about right now is the economy. Obama has two new videos advertised on his homepage, both of which deal with the economy and how it entered the state it's in. When I watched the videos, I noticed they were both very accusatory of John McCain. One of the videos, entitled "Keating Economics: The Making of a Financial Crisis" attacks McCain's past endeavors. Even this far into the campaign, you can still see some of the challenger style strategies at work here. Obama is effectively attacking the opponents record, calling for a change, and delegating harsh attacks. Obama is also calling for a change in the second video on his homepage, which is titled "Same Path". At this point in the election, is it at all possible for the candidates to stop attacking each other or are the attacks going to only get worse from here?