The former special counsel is being investigated for possible violations of the Hatch Act, which restricts partisan activities by federal employees. A G.O.P. senator had requested an inquiry over Mr. Smith’s prosecution of Donald Trump.

Officials with the Office of Special Counsel are launching an investigation into Jack Smith, who oversaw criminal probes into President Donald Trump related to the Jan. 6, 2021…

Smith led investigations into Trump’s part in the January 6 Capitol attack and the mishandling of classified documents