Hillary Rodham Clinton chalked up an easy victory in Sunday's Puerto Rico primary, a widely expected win that underscores the advantage she has enjoyed among Latino voters over Democratic rival Barack Obama.

Clinton trounced Obama 68% to 32%, write The Times' Michael Finnegan and Louise Roug.

"Obama remains the front-runner for their party's presidential nomination. Although Clinton won 38 delegates in Puerto Rico to Obama's 17, he is just 47 short of the threshold for victory, the Associated Press said; she needs 202.5."

"With Tuesday's primaries in South Dakota and Montana the only Democratic contests left, the final decision rests with the approximately 200 uncommitted superdelegates. Those party insiders will join the delegates selected in caucuses and primaries to determine who will be the nominee at August's Democratic National Convention in Denver."

Photo: Sen.Clinton posed for photos at the Kasalta Bakery in San Juan as she campaigned on primary day in Puerto Rico. Elise Amendola / Associated Press

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-- Deborah Bonello in Mexico City