The head of a key US congressional investigation into alleged Russian hacking has temporarily stepped down amid an ethics inquiry into him.
House Intelligence Committee chairman Devin Nunes is now himself under investigation by the House Ethics Committee.
The panel is looking into claims that the Republican disclosed classified intelligence.
Mr Nunes called the charges “entirely false” and “politically motivated”.
He said his decision to step aside came after “several left-wing activist groups have filed accusations against me with the Office of Congressional Ethics”.
Mr Nunes added he would continue to fulfil his other responsibilities as chairman, requesting to speak to the ethics panel “in order to expedite the dismissal of these false claims”.
Democrats have criticised Mr Nunes for his handling of the inquiry, which is also looking at possible links between the Trump campaign and Moscow.