George Papadopoulos told the court in Washington DC he was a "patriotic American" who made a mistake by lying.
"I made a terrible mistake but I am a good man".
"In some ways it constitutes a calculated exercise of self interest over the national interest", the judge said.
Papadopoulos has cooperated for more than a year with Mueller's probe into Russian interference in the United States presidential election and possible collusion with the Trump campaign.
Already at that time, Breen noted, Trump was calling the allegations of Russian interference in the election "fake news" and a "political witch hunt" - terms he continues to use for the Mueller probe.
His lawyers say Papadopoulous acted out of a "misguided sense of loyalty to his master" and to preserve his career options in the new administration.
PAPADOPOULOS' attorney said Trump's efforts dwarfed his client's actions.
"I do credit the sense that he does feel remorse", Moss said. Told by the professor, Joseph Mifsud, that a Russian operative was "Putin's niece", Papadopoulos credulously repeated that assertion in an email to Trump campaign officials, prosecutors said. He was the first known Trump campaign official to cooperate with the special counsel into possible conspiracy between the Trump campaign and the Kremlin.
However, prosecutors argued the former aide's lies were indeed "material to the investigation".
According to documents released with his guilty plea, Papadopoulos offered to help set up a meeting with then-candidate Trump and Russian President Vladimir Putin. The judge said there's no evidence Papadopolous had "any desire to aid Russian Federation in any way". "A great day for America!" he said, unsuprisingly, in a Tweet.
"As far as I remember, I absolutely did not share this information with anyone on the campaign", Papadopoulos told Tapper. "4 days for $28 MILLION - $2 MILLION a day", he wrote on Twitter, an apparent, if inflated, estimation of the Russian Federation investigation's cost. Jeff Sessions "appeared to also like the idea and stated that the campaign should look into it".
One of more than a dozen defendants named in a lawsuit filed by the DNC in April, Mr. Milfsud "is missing and may be deceased", attorneys for the committee wrote in a status report entered in Manhattan federal court. "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".