Top US lawmaker Devin Nunes has refused to clarify his role in the House of Representatives' Russia election probe, two months after he publicly stepped aside.
Nunes, chairman of the House intelligence committee, was previously leading the probe but recused himself in April, after rivals alleged he had disclosed classified information to back up Donald Trump's claims of wire-tapping by Barack Obama.
However in May it was reported that the California-based Republican remained involved in the intelligence review process for the Russia investigation, and then last week it emerged he had been unilaterally issuing subpoenas, leading some to suggest he had 'un-recused' himself and was taken a lead role once again.
Nunes was quizzed on his involvement in the investigation, and the claims that he has returned to direct involvement, at a press conference. But these have been deflected by the senator, who said he would not be talking about any business relating to the committee.
Reports that Nunes is once again playing a key role on the inquiry have raised the ire of several Democrats in the house - like House Minority Leader Nancy Pelosi, who raised the issue with the House Speaker Paul Ryan.
However, the new head of the probe - Michael Conaway, a representative from Texas - told CNN Nunes had "broader responsibilities" on the committee.