Democratic Congressman Joaquin Castro is a member of the House Intelligence Committee, which is tasked with looking into Moscow’s alleged involvement in 2016 election.
But while he has refused to single out individuals for blame, Mr Castro has warned that ‘when all is said and done some people will end up in jail.’
Speaking to CNN’s Wolf Blitzer, Mr Castro said: ‘The FBI, as part of our counterintelligence effort, is investigating the Russian government’s efforts to interfere in the 2016 election.’
He added: ‘That includes investigating the nature of any links between associates of the Trump campaign and the Russian government and whether there was any coordination between the campaign and the Russian effort.
‘I cannot say more about what we are doing and whose conduct we are examining.’
His stark claim of jail time came when he was quizzed about whether he had seen any evidence of collusion between Russia and the Trump campaign.
‘I guess, I would say this – that my impression is that I would not be surprised that when all is said and done, that some people end up in jail’, he boldly claimed.
He also claimed that it was ‘yet to be determined’ how high in the Trump campaign the investigation – and said ‘that’s my impression’ when asked if his claims referred to more than one person.