How will Romney Unite the Nation?

The nation is obviously bitterly divided, with a large number of people in taking extreme positions without good reason or consideration of the rights of others. The abuse such as saturates this YA Election board illustrates how bad this problem is. Nothing either candidate might do in office is as damaging as splitting the nation in this way. America must be one nation, otherwise it will deteriorate into a splintered one, and freedom will become a distant illusion. We must find a way to move toward the center, toward reason and cooperation.

Assuming Romney were elected, what could he do to bring the nation back together? Would he do it?

And please- be rational and realistic.