Story highlights Clinton earned four pledged delegates while Bernie Sanders gained three

The party chairman and vice chairwoman also announced their support of Clinton

Washington (CNN) Hillary Clinton won the Guam Democratic caucuses Saturday, capturing 59.5% of the vote to Bernie Sanders' 40.1%, according to official party results.

Clinton won 777 votes to the Vermont senator's 528.

The former secretary of state, who holds a wide delegate lead over Sanders, earned four pledged delegates, while Sanders gained three.

The party chairman and vice chairwoman, previously uncommitted superdelegates, announced their support of Clinton in light of the caucus results, giving her the support of all five Guam superdelegates.

The small contest is on track with the broader Democratic trend: While Sanders remains competitive, Clinton is on course to rack up the delegates necessary to claim the party's nomination.

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