The U.S. attorney’s office in the District of Columbia has opened a criminal investigation into Jerome H. Powell, the Federal Reserve chair, over the central bank’s renovation of its Washington headquarters and whether Mr. Powell lied to Congress about the scope of the project, according to officials briefed on the situation, the New York Times reported.
The inquiry, which includes an analysis of Mr. Powell’s public statements and an examination of spending records, was approved in November by Jeanine Pirro, a longtime ally of President Trump who was appointed to run the office last year, the officials said.
The investigation represents the opening of a major new legal front against Mr. Powell, whom Mr. Trump has continually attacked for resisting his demands to slash interest rates significantly. The president has threatened to fire the Fed chair — even though he nominated Mr. Powell for the position in 2017 — and raised the prospect of a lawsuit against him related to the $2.5 billion renovation, citing “incompetence.”
Mr. Trump told The New York Times in an interview last week that he had decided on who he wants to replace Mr. Powell as Fed chair. He is expected to soon announce his decision. Kevin A. Hassett, Mr. Trump’s top economic adviser, is a front-runner for the top job. While Mr. Powell’s term as chair ends in May, his term as a governor runs through January 2028. Mr. Powell has not disclosed whether he plans to stay on at the central bank beyond this year.
The U.S. attorney’s investigation into Mr. Powell underscores Mr. Trump’s larger clash with the Fed. Other broadsides have included an effort to oust Lisa D. Cook, a governor at the central bank whom Mr. Trump tried to fire over allegations of mortgage fraud. Presidents are able to remove officials at the Fed only for “cause,” which has typically meant malfeasance or a dereliction of duty. The Supreme Court will hear arguments for Ms. Cook’s case on Jan. 21.
Congress granted the Fed the authority to set interest rates free of meddling from presidents, whose political fortunes are often tethered to how the economy is faring. Rather, lawmakers stipulated that the central bank should pursue low, stable inflation and a healthy labor market.
It is not clear whether Ms. Pirro has convened a grand jury or issued subpoenas. But prosecutors in her office have contacted Mr. Powell’s staff multiple times to request documents about the renovation project, according to an official with knowledge of the investigation who discussed an open inquiry on the condition of anonymity.

