THE MILLER MOMENT: Zell Miller's address will, I think, go down as a critical moment in this campaign, and maybe in the history of the Republican party. I kept thinking of the contrast with the Democrats' keynote speaker, Barack Obama, a post-racial, smiling, expansive young American, speaking about national unity and uplift. Then you see Zell Miller, his face rigid with anger, his eyes blazing with years of frustration as his Dixiecrat vision became slowly eclipsed among the Democrats. Remember who this man is: once a proud supporter of racial segregation, a man who lambasted LBJ for selling his soul...