Before Indiana & N. Carolina, there will be Guam, on May 3rd. It looks like Hillary gained 10-12 delegates in PA. Can Obama put a dent (however small) in her PA gain even before Indian and N. Carolina? I think so.
Obama campaing already "landed" in Guam. And, yes, Obama should fly to Guam for a short campaign stop or, at least, fly Michelle or some other top surrogate there. It may be worth it if he is able to repeat his Virgin Island's result, sweeping Hillary straight into the ocean (or sea).
Here's some details you need to know about the Guam's caucus.
(1) Guam's population is 173,000;
(2) people over age 65 constitute only ... 6.9% of the entire population. Indeed, the median age is only 28;
(3) Guam's ethnic breakdown: Chamorro - 37%, Filippino - 26%, other Pacific Islanders - 11%, whites - 7%, Asians - 6% (somewhat similar to Hawaii?);
(4) yes, it is a caucus (so, it prolly won't matter to some);
(5) moreover, it is a closed caucus - only registered Dems are allowed to vote;
(6) Guam will allocate 4 pledged delegates as a result of its caucus;
(7)Guam also has 5 superdelegates. So far, only 1 announced her support. For Clinton. 4 others are undecided.