Rep. Hakeem Jeffries Hakeem Sekou JeffriesThe Memo: Capitol Hill braces for Cohen fireworks House votes to overturn Trump's emergency declaration Why Omar’s views are dangerous MORE (D-N.Y.) is endorsing Democratic presidential front-runner Hillary Clinton Hillary Diane Rodham ClintonREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails County GOP in Minnesota shares image comparing Sanders to Hitler Holder: 'Time to make the Electoral College a vestige of the past' MORE.

“Hillary Clinton is not a blank check — she’s money in the bank,” he said, according to the New York Observer.

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Jeffries said Clinton's main rival for the Democratic nomination, Sen. Bernie Sanders Bernard (Bernie) SandersSenate Dems seek to turn tables on GOP in climate change fight Bernie Sanders Town Hall finishes third in cable news race, draws 1.4 million viewers Woman to undecided Biden: 'Just say yes' to 2020 bid MORE (I-Vt.), is incapable of winning in the general election.

“Let’s be clear — a self-described socialist will not be the next president of the United States,” Jeffries said at New York City Hall.

“Senator Bernie Sanders in my view has a significant track record of articulating good ideas on behalf of hard-working Americans but that verbal track record in and of itself is not a sufficient qualification to be the next president of America.”

Jeffries argued that Clinton has a better chance of winning the White House next year because Sanders is not gaining traction with minority voters.

“It was clear to me very early on that Barack Obama Barack Hussein ObamaChicago's next mayor will be a black woman Obama portraits brought more than 1 million visitors to National Portrait Gallery in first year With low birth rate, America needs future migrants MORE had broad appeal across a very diverse constituency in the United States of America,” said Jeffries, citing the president’s path to the Oval Office in 2008 and 2012.

“I’ve got tremendous respect for Senator Bernie Sanders but he’s got a narrow appeal and it’s not clear to me [that it] will extend beyond certain segments in Iowa and New Hampshire and I think the polls have born that out to date,” he added.

Jeffries then criticized liberal New York Mayor Bill de Blasio (D) for refusing to endorse Clinton’s 2016 bid. De Blasio has repeatedly argued Clinton’s policy positions are too vague.

“It’s not my place to determine his time table,” Jeffries said of de Blasio’s endorsement, according to the New York Daily News.

“It’s not clear to me, however, that a town hall meeting in the corn fields of Iowa has anything to do with the quality of life of everyday New Yorkers,” he said, referencing de Blasio’s presidential forum in the Hawkeye State next December.

“[She] has a proven track record,” Jeffries added of Clinton. "I think you will see her strengthen her support [as the race goes on].”

Jeffries is reportedly considering running against de Blasio for the New York mayor’s office in 2017.

De Blasio previously managed Clinton's successful campaign for a New York Senate seat in 2000.