Last minute Super Tuesday links

On the eve of Super Tuesday, a CNN poll has Obama leading Hillary nationally. Slate has an interesting article explaining the complexities of delegate process, using California as a case study. And Marc Ambinder has been posting last-minute projections for both parties' primaries.

"National Super Tuesday poll shows dramatic Democratic shift" [CNN]
"Super Tuesday: Which Districts Matter?" [Slate]
"Feb 5 Projections: Revised" [The Atlantic]