A media outlet focused on Cuba but operated through the U.S. government referred to liberal billionaire George Soros as a “Jew of flexible morals,” drawing Senate calls for an investigation of the “blatantly anti-Semitic” programming.

“This blatantly anti-Semitic, vitriolic, propagandistic rhetoric has no place in American society, much less from a U.S. government funded entity,” New Jersey Sen. Bob Menendez, the top Democrat on the Foreign Relations Committee, wrote in a Wednesday letter.

The segment was aired by TV Marti, a U.S.-backed outlet founded to “promote freedom and democracy by providing the people of Cuba with objective news and information programming.” But a May 2018 broadcast amplified the targeting of Soros that has become customary for nationalist leaders such as Hungarian Prime Minister Viktor Orban.

“This segment includes outlandish and unfounded claims that Soros has used capitalism and Wall Street to finance ‘anti-system’ campaigns around the world; that he was an architect of the 2008 financial collapse; and that he had played a role in legitimizing narcoterrorists in Colombia,” Menendez said.

The media outlet falls under the auspices of the U.S. Agency for Global Media, which announced earlier this week that an internal investigation is underway.

“Those deemed responsible for this production will be immediately placed on administrative leave pending an investigation into their apparent misconduct,” said John Lansing, the CEO of the agency, on Monday. “Disciplinary action appropriate under federal law may then be proposed, including the potential removal of those responsible, depending on the outcome of that investigation.”

Lansing said he learned of the segment over the weekend, a revelation that roughly coincided with a shooting at a synagogue in Pittsburgh, on Saturday. The assault claimed 11 lives and wounded another six people, including four police officers.

“Have there been any other segments that have disseminated anti-Semitic or other inappropriate propaganda that does not comport with the USAGM’s objectives?” Menendez asked Lansing. “Why did it take five months for this issue to come to the attention of USAGM leadership?”