From NBC's Domenico Montanaro
With the pick up of Sen. Byron L. Dorgan (D-ND) today, Obama has now reached 200 superdelegates. He has cut what was once a 90-delegate advantage for Clinton to what is now 56 since Super Tuesday, Feb. 5th. Since Feb. 5, Obama has gained 30 publicly declared superdelegates, and Clinton has lost a net of four.
Clinton maintains a 256-200 advantage in our overall superdelegate count.
NBC/NJ's Aswini Anburajan adds...
Dorgan (D-ND) endorsed Obama in a conference call with reporters, and stressed Obama's support for free trade. He also praised his call, though, to renegotiate agreements like NAFTA to include labor and environmental protections.
Dorgan also repeated the call of many other Red State Dems, who argued that Obama can help down-ballot candidates and appeals to independents and Republicans.
This is Obama's second senatorial endorsement in as many days. Yesterday, he received the endorsement of Connecticut Sen. Chris Dodd, the first former presidential candidate to endorse Obama.