SACRAMENTO, Calif. — As ballots were counted in Puerto Rico’s primary Sunday, the island’s voters were expected to put Hillary Clinton on the verge of effectively locking up the Democratic presidential nomination.

There are 60 delegates up for grabs in Puerto Rico, and Clinton needs just 60 to reach the 2,383 required for the nomination. She will probably cross that threshold after another round of primaries Tuesday.

Clinton’s total includes pledged delegates and super-delegates, who are party leaders and elected officials who can decide which candidate to support at the Democratic National Convention in July.

She is beating Sen. Bernie Sanders of Vermont, her rival for the nomination, in both categories. She also has won more states, and more votes, than Sanders.

Clinton won all seven pledged delegates at stake Saturday in the U.S. Virgin Islands.

California, New Jersey and four other states hold primaries Tuesday. Though the race remains tight in California, Clinton is likely to win more than enough delegates in New Jersey to put her over the top.

The final primary is June 14 in Washington, D.C.

Sanders argues that Clinton should not claim victory Tuesday because her delegate tally includes most of the party’s super-delegates, who still can switch sides. Few have signaled any plans to do so, however.

Sanders has vowed to take his campaign to the convention in Philadelphia even if he loses upcoming contests.

“The Democratic National Convention will be a contested convention,” he told a Los Angeles news conference Saturday.

A candidate typically is considered the presumptive nominee after locking up enough pledged delegates and super-delegates to win the nomination.

President Obama did that in 2008 when he and Clinton fought their way through the primaries. She later endorsed him, campaigned for him and joined his Cabinet as Secretary of State.

Barring mathematically improbable landslide victories in Tuesday’s primaries, Sanders will still trail Clinton in pledged delegates.

That means his only path to the nomination would require super-delegates – members of a Democratic establishment that has heavily favored Clinton from the start of the campaign – switching their allegiance to Sanders and overturning the popular vote.

Even as his chances continue to slip away, Sanders continued to attack Clinton.

Sanders told CNN’s Jake Tapper that Clinton has been too quick to support the use of military force, saying her 2003 vote to authorize force in Iraq when she was in the U.S. Senate “was not just an aberration.”

He cited Clinton’s push for intervention in Libya in 2011, and a no-fly zone in Syria as examples that “can suck us into never-ending conflict in that area.”

Sanders also said Clinton has a conflict of interest with the Clinton Foundation, which was set up by her husband, former President Bill Clinton.

The foundation collected donations from foreign governments such as Saudi Arabia while she was Secretary of State under Obama.

“Do I have a problem with that?” Sanders said. “Yeah, I do.”

Clinton and Sanders both have campaigned heavily in California, the biggest delegate prize of the season. Polls show a tight race.

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