Republicans controlling the US House of Representatives have voted to launch an investigation into what they term President Joe Biden's weaponisation of the federal government, but Democrats branded it a partisan fishing expedition.
Republicans have been promising to use their new majority against the Justice Department, FBI and other federal agencies investigating Republican former president Donald Trump and his supporters who on January 6, 2021, stormed the Capitol.
The party-line vote on Tuesday aims to do just that, setting up a "select subcommittee on the weaponisation of the federal government".
The body is set to launch a wide-ranging probe of Democrat Biden's administration, which Republicans accuse of "weaponising" the FBI against Trump.
"We need to get to work now," Republican James Comer, head of the oversight committee, said in a speech on the House floor. "We must expose the abuses committed by the unelected, unaccountable federal bureaucracy."
Among the federal agencies targeted are those looking into Trump's attempt to overturn his 2020 defeat and alleged mishandling of classified documents. Trump has dismissed these probes as "witch hunts".
Republican Representative Elise Stefanik, days after the August search of Trump's Mar-a-Lago resort for classified material, promised to launch a probe of "Joe Biden and his administration's weaponisation of the Department of Justice and FBI ... The FBI raid of President Trump is a complete abuse and overreach of its authority."
Democrats have raised concerns about a provision that authorises the committee to probe "ongoing criminal investigations", which are generally outside the purview of congressional oversight.
"This is a violation of separation of powers, and it's also very dangerous," said Jerrold Nadler, the top Democrat on the judiciary committee.
On Monday, the White House said that lawyers for Biden found classified documents at a Washington think tank affiliated with the president.
Some Republicans compared that discovery to the criminal investigation into Trump's removal of classified documents from the White House, though smaller numbers of papers are involved and Biden's team said it turned them over upon discovery, while Trump resisted calls to return the paperwork and now faces an investigation into whether he obstructed justice.
Legal experts said federal law enforcement agencies would almost certainly reject any attempt by a congressional committee to obtain documents related to ongoing investigations.