I like Powell, but the kind of unity you are looking for would not happen, even with him. Too much hatred and ignorance on the left, pumped into the sheeple's living room via the mainstream media. you can't unify with that.
there really is not reason for the country to not be unified - except for this hatred from teh left and the media. Bush hasn't done anything to divide the country. What the Bush political team has done is ceded the premise on issue after issue to the lies of the left, without effectively countering it. The divisions that exist are built on lies about Iraq, and its going to be hard/impossible to take those premises back - absent some major WMD revelation for example.
The mass media can be very forgiving, *if* they are presented with the right person to forgive. Find someone they like and we like (or can live with) and put them in a power position (but one that can be controlled).