Washington: A political feud erupted on Wednesday over the US House Intelligence Committee's probe of suspected Russian meddling in the 2016 presidential election, with charges that the panel's Republican chairman subpoenaed the CIA, FBI and National Security Agency without telling Democratic members.

Committee aides complained that the chairman, Representative Devin Nunes, who publicly recused himself from leading the Russia probe in April following a secret visit he paid to White House officials, failed to consult Democrats on the subpoenas.

The subpoenas asked the spy agencies to provide details of any requests made by two top Obama administration aides and the former CIA director to "unmask" names of Trump campaign advisers inadvertently picked up in top-secret foreign communications intercepts, congressional sources said.

The former officials named in the subpoenas were Obama national security adviser Susan Rice, former US Ambassador to the United Nations Samantha Power and former CIA Director John Brennan.