A Jewish online magazine in the US has accused the White House of engaging in “Jew-baiting” and “racial and ethnic prejudice” to slander critics of the Iran deal, including New York Senator Chuck Schumer.

Editors of Tablet compared the behavior of the White House to “the kind of dark, nasty stuff we might expect to hear at a white power rally.”

Schumer, a Jewish Democrat, announced on Thursday that he was breaking with President Barack Obama and would vote to oppose the Iran nuclear agreement.

In a speech at American University last week, President Barack Obama denounced the deal's opponents as “lobbyists” doling out millions of dollars to trumpet the same hawkish rhetoric that had led the United States into war with Iraq.

CAMERA, the Committee for Accuracy in Middle East Reporting in America, a media-monitoring, research and membership organization devoted to promoting accurate and balanced coverage of Israel and the Middle East, noted that a New York Times article about Schumer's opposition to the Iran deal used the word “Jewish” six times.

In the editorial, titled “Crossing a Line to Sell a Deal,” Tablet asserted that the “White House and its allies shouldn’t need to smear American Jews — and a sitting senator — as dual loyalists to make their case.”

While the editors noted that they “support the president” and “sympathize” with his efforts to combat Iran’s nuclear weapons pursuit, they wrote, “What we increasingly can’t stomach — and feel obliged to speak out about right now — is the use of Jew-baiting and other blatant and retrograde forms of racial and ethnic prejudice as tools to sell a political deal, or to smear those who oppose it.”

“Accusing Senator Schumer of loyalty to a foreign government is bigotry, pure and simple. Accusing Senators and Congressmen whose misgivings about the Iran deal are shared by a majority of the U.S. electorate of being agents of a foreign power, or of selling their votes to shadowy lobbyists, or of acting contrary to the best interests of the United States, is the kind of naked appeal to bigotry and prejudice that would be familiar in the politics of the pre-Civil Rights Era South,” the editors wrote.

“This use of anti-Jewish incitement as a political tool is a sickening new development in American political discourse, and we have heard too much of it lately — some coming, ominously, from our own White House and its representatives,” Tablet wrote. “Let’s not mince words: Murmuring about ‘money’ and ‘lobbying’ and ‘foreign interests’ who seek to drag America into war is a direct attempt to play the dual-loyalty card.”

Major Jewish groups condemned the use of offensive, and possibly anti-Semitic language used by the White House, its allies and even the President in the heated ongoing debate over the nuclear deal with Iran.

Pro-Iran lobby the National Iranian American Council (NIAC), which reportedly has ties to the Iranian regime, explicitly accused Schumer of being more loyal to Israel than America, the Free Beacon said.

Abraham Foxman, who just stepped down from his longtime role as national director at the Anti-Defamation League, said Obama was using language — saying those opposed to the deal were cynically motivated to bomb Iranian nuclear sites — that fueled the anti-Semitic stereotyping of Jews as warmongers.

Associate Dean of the Simon Wiesenthal Center, Rabbi Abraham Cooper, accused the Obama administration of bullying, denouncing the language used as an “outrage” and that he was “grateful” Schumer and other American Jews were fighting to get Congress to oppose the deal.

“I don’t fear the crock of dual loyalty,” he said. “I am ashamed by those who cannot bring facts to the table so they attempt to bully.”

Another pro-Israel watchdog Honest Reporting asked if critics of the Iran deal were getting “unfairly smeared” with the dual loyalty charge

The group pointed to a CNN segment with Fareed Zakaria in which he claimed that Schumer’s calculations were based on money and the risk of losing “core supporters” who are apparently involved in or coordinating the “well-financed campaign against” the deal.