Schneider: Clinton's heavy campaigning appears to pay off

(CNN) - Hillary Clinton appears to be benefiting from her extensive campaigning in Puerto Rico.

The New York Democrat spent 6 of the last 7 days campaigning on the island, while Barack Obama only made one visit to the territory. Among those Puerto Rican voters who decided in the last week, Clinton has a 31 point advantage, 67 percent to 33 percent.

The vast majority of Puerto Rican voters (78 percent) also said the candidates' personal visits to the island - a rarity in previous presidential contests – had a big impact on how they voted.