Former Trump campaign adviser George PapadopoulosGeorge Demetrios PapadopoulosTale of two FBI cases: Clinton got warned, Trump got investigated Trump says he would consider pardons for those implicated in Mueller investigation New FBI document confirms the Trump campaign was investigated without justification MORE suggested Sunday that his testimony could help special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's investigation demonstrate collusion between the Trump campaign and Russia.

"Do you think when the entire Mueller investigation is finished that they will demonstrate that there was collusion between the Trump campaign, Trump advisers and the Russians?" ABC's George Stephanopoulos asked Papadopoulos on "This Week."

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"I have no idea," the former Trump campaign adviser responded. "All I can say is my testimony might have helped move something towards that."

George Papadopoulos on if he believes collusion will be demonstrated between the Trump campaign and Russia once the special counsel investigation concludes: "I have no idea. All I can say is that my testimony might have helped move something towards that." https://t.co/de8rwfjb7S pic.twitter.com/zq5p1aMp0m — This Week (@ThisWeekABC) September 9, 2018

Papadopoulos insisted that he could not comment on further details of his conversations with Justice Department officials, given Mueller's special counsel investigation is ongoing.

Papadopoulos was sentenced on Friday to fourteen days in federal prison and one year supervised release for lying to FBI investigators about his Russia contacts during the 2016 election. He pleaded guilty in October to lying to FBI agents and is the first Trump campaign official to be sentenced as part of Mueller's probe.

Papadopoulos told ABC that he did not believe he incriminated President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE in cooperating with Mueller's probe.

"Of course I'm remorseful, I'm contrite and I did lie [to the FBI] but you know you're just taken off guard, I guess, in such a momentous occasion where you're potentially sitting there incriminating the president. Even though, of course, I don't think I did," he said.

"That was probably in the back of my mind, of what exactly am I doing here talking about Russian hacking or election interference with a candidate that I just worked for," he added.