When I voted for Barack Obama during the Tennessee primary (even though I was an Edwards-leaning voter), all I asked from the hard-core Obama supporters was to stop crowing long enough to say, "Thanks."
Now they owe John Edwards himself thanks for taking any populist steam left from yesterday's Clinton victory out of her wide West Virginia margin. Not only will Edwards' delegates now likely all vote for Obama, but the only true populist who ran for President this year endorses Barack Obama tonight. That's a timely boost.
What started in Indiana as a shift away from Clinton is now momentum chugging fully toward Obama, who will clearly be the next Democratic nominee for President, soon and well before the convention.