They will ruthlessly attack however, you can count on that.
I'm sure they will, and if there's the smallest thing that can be found to use against Obama, it will be found and it will be used. However, I also believe that a majority of the American people are sick and tired of the same old tactics of "swift-boating." The very term itself is repulsive. But Obama is up against millions of racists who see his color rather than the person. Hillary Clinton is up against millions of bigots who see her gender rather than the person.
Like APL said, the young, first-time voters and people of color must come out in numbers not seen ever before for this election. We used to talk about how important the 2004 election was. This 2008 election is even more so.