WASHINGTON (AP) — There’s little doubt which candidate the Democratic Party establishment supports for president. It’s not even close.

Hillary Rodham Clinton has locked up public support from half of the Democratic insiders who will cast ballots at the party’s national convention, giving her a big head start in securing the nomination more than two months before primary voters start going to the polls.

Clinton’s margin over Vermont Sen. Bernie Sanders and former Maryland Gov. Martin O’Malley is especially notable because most of the people known as superdelegates don’t usually back candidates so early in the race.

“She has the experience necessary not only to lead this country, she has experience politically that I think will help her through a tough campaign,” said Unzell Kelley, a county commissioner from Alabama.

“I think she’s learned from her previous campaign,” he said. “She’s learned what to do, what to say, what not to say – which just adds to her electability.”

The Associated Press contacted all 712 superdelegates in the past two weeks, and heard back from more than 80 percent. They were asked which candidate they plan to support at the convention next summer.

The results:

Clinton: 359.

Sanders: 8.

O’Malley: 2.

Uncommitted: 210.

The 712 superdelegates make up about 30 percent of the 2,382 delegates needed to clinch the Democratic nomination. That means Clinton already has 15 percent of the delegates she needs before the first voters go to the primary polls.

Her lead reflects Clinton’s advantage among the Democratic Party establishment, an edge that has helped the 2016 front-runner build a massive campaign organization, hire top staff and win coveted local endorsements.

Superdelegates are convention delegates who can support any candidate, no matter whom voters choose in the primaries and caucuses. They are members of Congress and other elected officials, party leaders and members of the Democratic National Committee.

The AP counted only public, on-the-record endorsements.

Clinton is also leading most preference polls in the race for the Democratic nomination, most by a wide margin. Sanders has made some inroads in New Hampshire, which holds the first presidential primary, and continues to attract huge crowds with his populist message about income inequality.

But Sanders has only recently started saying he’s a Democrat after a decades-long career in politics as an independent. While he’s met with and usually voted with Democrats in the Senate, he calls himself a democratic socialist.

“We recognize Secretary Clinton has enormous support based on many years working with and on behalf of many party leaders in the Democratic Party,” said Tad Devine, a senior adviser to the Sanders campaign. “But Sen. Sanders will prove to be the strongest candidate, with his ability to coalesce and bring young people to the polls the way that Barack Obama did.”

“The best way to win support from superdelegates is to win support from voters,” said Devine, a longtime expert on the Democrats’ nominating process.

The Clinton campaign has been working for months to secure endorsements from superdelegates, determined to avoid mistakes that cost her the nomination in 2008.

That year, Clinton hinged her campaign on an early knockout blow while Obama’s staff devised a strategy to accumulate delegates well into the spring.

This time around, Clinton has hired Obama’s top delegate strategist from 2008, lawyer Jeff Berman, an expert on the party’s arcane nomination rules.

Clinton’s focus has paid off, putting her way ahead of where she was at this time eight years ago. In December 2007, she had public endorsements from 169 superdelegates, according to an AP survey. At the time, Obama had 63 and a handful of other candidates had commitments as well from the smaller fraction of superdelegates willing to commit to a candidate.

“Our campaign is working hard to earn the support of every caucus goer, primary voter and grass-roots and grass-top leaders,” said Clinton campaign spokesman Jesse Ferguson. “Since day one we have not taken this nomination for granted and that will not change.”

Some superdelegates said they don’t think Sanders is electable, especially because of his embrace of socialism. But few openly criticized him, and a handful endorsed him.

“I’ve heard him talk about many subjects and I can’t say there is anything I disagree with,” said Chad Nodland, a DNC member from North Dakota who is backing Sanders.

However, Nodland added, if Clinton is the party’s nominee, “I will knock on doors for her. There are just more issues I agree with Bernie.”

Some superdelegates said they were unwilling to publicly commit to candidates before voters have a say. A few said they have concerns about Clinton, who has been dogged about her use of a private email account and server while serving as secretary of state.

“If it boils down to anything, I’m not sure about the trust factor,” said Danica Oparnica, a DNC member from Arizona. “She has been known to tell some outright lies and I can’t tolerate that.”

But others said they were won over by Clinton’s hours of testimony before a GOP-led committee investigating the attack on a U.S. consulate in Benghazi, Libya. Clinton’s appearance won widespread praise as House Republicans struggled to trip her up.

“I don’t think that there’s any candidate right now, Democrat or Republican, that could actually face up to that and come out with people shaking their heads and saying, ‘That is one bright, intelligent person,'” said California Democratic Rep. Tony Cardenas.

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Associated Press writers Phillip Lucas in Birmingham, Alabama; Randall Chase in Dover, Delaware; James MacPherson in Bismarck, North Dakota; Jonathan Cooper in Salem, Oregon; Bob Christie in Phoenix and Juliet Williams in Sacramento, California, contributed to this report.