5 Things to Watch in Puerto Rico

Hillary Clinton is banking on a sizable victory today in Puerto Rico to bolster her argument that she’s received more votes than Barack Obama and is a stronger draw for Latinos. Key points to keep an eye on:

1. The second wave: While many Puerto Ricans sleep in, it's going to be clear by 1pm whether there will be a big turnout. And polls are open til 3pm.
2. The battle for San Juan: Puerto Rico's biggest urban district represents Obama's best chance, but Clinton has campaigned vigorously.

3. The money: Obama leads by 5 percentage points among Puerto Ricans who earn at least $18,000 a year; he trails her by 21 point among those who don't.
4. Turnout: Bill Clinton claims his wife's campaign needs a turnout of at least 700,000 in order to bolster her popular vote argument with superdels. But interest may wane because Puerto Ricans can't vote in November.
5. Racial 'calculus:' A big win will further Clinton's argument that Obama has a Latino problem.

(More Barack Obama stories.)