Pardon me for focusing on this, as at the moment I think it’s more immediately interesting than what remains of the contest on the Republican side.
In the NYT, Ron Klain argues that, as the difference between Clinton and Obama is, in effect, "stylistic," it’s not the ground of a lasting, and electorally consequential, schism in the party:
Democrats are engaged in a primary battle over the means of leadership, not the ends. While means are important, they are an unlikely ground for a lasting schism, especially when a choice emerges between a Democratic and a Republican nominee in the fall.
I agree that the grown-ups in the party--somewhat immune to Obama’s mesmerism--will nonetheless turn out in large numbers in the fall. What about the kids? And what about African-Americans, if the Clintons have to use legal legerdemain to secure the nomination? It may be that "cooler heads" who are interested in winning would accede to the enthusiasm, using their heads to follow others’ hearts.
But I also am unwilling to underestimate the ambition in Mrs. Clinton’s heart, facing her last chance to return to the White House as anything other than a dinner guest.