Senator Elizabeth Warren, a Democrat from Massachusetts and ranking member of Senate Banking, Housing, and Urban Affairs Committee, during a confirmation hearing in Washington, DC, US, on Tuesday, April 21, 2026. Samuel Corum | Bloomberg | Getty Images The Department of Justice's criminal investigation into Federal Reserve Chair Jerome Powell is merely "temporarily paused," a pair of Democratic senators said in a letter sent to the department Friday and obtained first by CNBC. "Your announcement leaves the door wide open for you to relaunch the criminal probe against Chair Powell – or future baseless investigations into Powell or other Fed Governors and a future Fed Chair – should it once again become politically expedient for you to do so," Sens. Elizabeth Warren , D-Mass., and Dick Durbin, D-Il., said in the letter addressed to U.S. Attorney for the District of Columbia Jeanine Pirro.…