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Delegate update: P.R. allocations

From NBC's Domenico Montanaro
NBC NEWS has also allocated 37 of 55 delegates in Puerto Rico. Clinton, so far, wins a 26-11 split with 18 delegates not allocated yet.

*** UPDATE *** Already factored into our counts below is that Obama also got another superdelegate -- an add-on from Maine (Gwethalyn Phillips of Bangor) after that state's convention this weekend. That's two so far today for the Illinois senator.

The NBC NEWS Delegate Counts:
PLEDGED: Obama 1723 to 1613
SUPERDELEGATES: Obama 329 to 293
EDWARDS PL. DELEGATES: Obama 16.5 to 0 (adding the 4.5 from Florida)
OVERALL: Obama 2,068.5 to 1,906 

* Obama is 49.5 from the magic number of 2,118. (Clinton needs 212.) 

* There are 250.5 total delegates remaining -- 49 pledged delegates at stake between today's contest in Puerto Rico (18 remain) and Tuesday's primaries in South Dakota and Montana. Plus, 201.5 undeclared superdelegates remaining. 

* That means Obama needs about 20% of all remaining delegates. Clinton needs 85%.