WASHINGTON • The Department of Homeland Security on Wednesday paused a new and controversial board’s work on disinformation and accepted the resignation of its leader, capping weeks of concerns about impinging on free speech rights and at times frenzied conspiracy theories about the board itself.

What remains to be seen is whether the debate over the board will damage ongoing U.S. efforts to counter disinformation used as a weapon by Russia and other adversaries. Secretary Alejandro Mayorkas acknowledged the board had become a distraction to the department’s other work, which includes safeguarding U.S. elections, two officials familiar with his decision said.

The Disinformation Governance Board’s director, Nina Jankowicz, wrote Wednesday that the board’s future was “uncertain,” according to a resignation letter obtained by The Associated Press.

While the board has not formally been shuttered, it will be reviewed by members of a DHS advisory council that’s expected to make recommendations in 75 days. The Washington Post first reported the board’s pause.

Federal and state agencies treat disinformation as a national security threat. In a statement announcing its launch, DHS said the new initiative would coordinate efforts around threats of Russian disinformation campaigns aimed at the U.S. and false claims that encourage migrants to travel to the U.S.-Mexico border.

But the new board was hampered from the start by questions about its purpose, funding and work with an uneven rollout that further confused its mission. Mayorkas struggled to answer questions about the board’s work in front of lawmakers on Capitol Hill earlier this month.

Mayorkas made the decision to pause the board in response to the cumulative negative reaction and growing concerns that it was distracting from the department’s other work on disinformation, according to two department officials who spoke on condition of anonymity to discuss internal deliberations.

“The Board has been grossly and intentionally mischaracterized: it was never about censorship or policing speech in any manner,” the department said in a statement. “It was designed to ensure we fulfill our mission to protect the homeland, while protecting core Constitutional rights.”

White House press secretary Karine Jean-Pierre noted the board had never met and neither the department nor Jankowicz had any power to censor or remove content labeled as disinformation.