Listen: Ex-FBI Director To Lead Inquiry In To Alleged Links Between Trump's Campaign & Russia.
Donald Trump insists he did not collaborate with the Russians to sway the US election.
He's been reacting to the appointment of former FBI director Robert Mueller to lead an investigation into possible links between Moscow and the campaign.
Mr Trump's already denied trying to shut down the inquiry into any collusion.
Republican congressman Jason Chaffetz, who chairs the powerful House oversight committee, thinks the Democrats lack evidence of wrongdoing.