This is from the middle of the column. The Unbearable Whiteness of DeanIs the Democratic Party dividing along racial lines? Last week we analyzed a pair of competing poll results that suggested it may be: the MoveOn "primary," which Howard Dean won handily, and a Gallup poll, which showed Joe Lieberman in the lead and Al Sharpton in a fourth-place tie overall and leading the pack among black Democrats. It seems Sharpton noticed the same Gallup poll. On CNN's "Late Edition" yesterday, he cited it in expressing his frustration over all the attention Dean is getting after the latter's recent...