It's an entirely political discussion on this week's Campbell Conversations, as Congresswoman Ann Marie Buerkle and political consultant Scott Armstrong consider the Republican presidential field in light of the Iowa Caucus results. Among the questions they consider are: What surprised them? Is the party dangerously fractured as it heads toward the general election? What could unite it? Are the norms of the Republican Party changing in important ways? Is Romney still the nominee apparent? And what are the calculations about a vice presidential candidate at this point?