A representative of the U.S. Agency for Global Media did not return an email request seeking comment on Wednesday night.
Senator Robert Menendez of New Jersey, the top Democrat on the Senate Foreign Relations Committee, denounced Mr. Pack in a statement on Wednesday night.
“The wholesale firing of the agency’s network heads, and disbanding of corporate boards to install President Trump’s political allies, is an egregious breach of this organization’s history and mission from which it may never recover,” he said.
“This latest attack is sadly the latest — but not the last — in the Trump administration’s efforts to transform U.S. institutions rooted in the principles of democracy into tools for the president’s own personal agenda,” Mr. Menendez added.
Brett Bruen, a former career diplomat and director of global engagement on President Barack Obama’s National Security Council, pointed to the “long history of bipartisanship” of the news organizations in criticizing Mr. Pack’s move. “They don’t present a Republican or Democratic voice to the world,” he said. “They have always put forward an American, a credible voice.”
“Pack appears to have tossed that hard-fought reputation out the window,” he added. “You don’t get it back in years or even decades. It’s gone.”