Shortly after The Associated Press updated its delegate count and declared Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE the presumptive Democratic presidential nominee, a spokesman for Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE slammed the media’s “rush to judgment.”

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“It is unfortunate that the media, in a rush to judgment, are ignoring the Democratic National Committee’s clear statement that it is wrong to count the votes of superdelegates before they actually vote at the convention this summer,” Michael Briggs said Monday night.

“Secretary Clinton does not have and will not have the requisite number of pledged delegates to secure the nomination. She will be dependent on superdelegates who do not vote until July 25 and who can change their minds between now and then. They include more than 400 superdelegates who endorsed Secretary Clinton 10 months before the first caucuses and primaries and long before any other candidate was in the race.

“Our job from now until the convention is to convince those superdelegates that Bernie is by far the strongest candidate against Donald Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE.”

Superdelegates are party leaders free to vote for any candidate at the Democratic National Convention.

Briggs also called in to MSNBC to talk with Rachel Maddow on Monday night.

"We think it’s important to give the voters their say and not cut off the process at this point," Briggs said.

He said the campaign is reaching out and making calls to superdelegates "to give another look" at Sanders.

The AP reported Monday night that Hillary Clinton has secured the 2,383 delegates — including superdelegates who say they will vote for her — needed to clinch the nomination for president.

The AP tally comes ahead of primary elections Tuesday in six states, including delegate-rich California.

“According to the news, we are on the brink of a historic, historic, unprecedented moment, but we still have work to do,” Clinton said at the start of a Monday rally in Long Beach, Calif., shortly after the AP made the call.

NBC News announced shortly before 9 p.m. EDT that it would begin calling Clinton the Democrat’s presumptive presidential nominee.

Updated 9:43 p.m.