By Sarah N. Lynch

WASHINGTON (Reuters) – Trump administration officials have threatened to fire a top U.S. prosecutor who is overseeing a fraud investigation into New York Attorney General Letitia James, a high-profile opponent of President Donald Trump, but who has yet to pursue charges and has expressed doubts about the case, two people familiar with the matter said.

Erik Siebert, the U.S. Attorney for the Eastern District of Virginia, was still in his office as of late Friday afternoon, however, and it was unclear how the situation would be resolved.

Siebert’s office has also been involved in a separate criminal investigation involving former FBI Director James Comey related to the agency’s past probes of Russian interference in the 2016 election.

Siebert has expressed a view that t

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