The US President first attacked his former lawyer Michael Cohen - who last week admitted to lying about Trump's Russian Federation dealings - calling for his one-time employee to "serve a full and complete sentence".
Special counsel Robert Mueller is now investigating Stone as part of his probe into alleged collusion between the Trump campaign and Russian Federation.
"Given the defendant's substantial assistance and other considerations set forth below, a sentence at the low end of the guideline range-including a sentence that does not impose a term of incarceration-is appropriate and warranted", the memo reads.
Last week, Corsi refused Mueller's offer for a plea deal over his role as a suspected intermediary between Stone and WikiLeaks, saying he was prepared to spend the "rest of my life" in prison rather than "sign a lie".
Sources close to the matter told Yahoo News correspondent Michael Isikoff, who wrote the book Russian Roulette: The Inside Story of Putin's War on America and the Election of Donald Trump, that the investigation will be coming to its climax in the upcoming weeks.
Virginia Democratic senator Mark Warner said Trump's tweet was "serious", adding: "The President of the United States should not be using his platform to influence potential witnesses in a federal investigation involving his campaign".
Flynn became the first high-ranking Trump associate to agree to cooperate with the special counsel's prove when he pleaded guilty on December 1, 2017.
He has instead spent considerable time with his family and worked to position himself for a post-conviction career.
Cohen admitted to lying to lawmakers in federal court last week about how much he discussed his proposed business project in Moscow with the president. "It is a shame because his actions during the transition were lawful", Trump tweeted after Flynn pleaded guilty a year ago. As part of his plea agreement, Flynn agreed to cooperate with the Mueller investigation.
But Trusty said that during the FBI's investigation of Hillary Clinton's private email server, investigators and Comey "swore off even pursuing false statements charges", quoting a recent Justice Department inspector general report. The sentencing is scheduled on December 12.
Flynn was forced to resign his post on February 13, 2017, after news reports revealed that Obama administration officials had warned the Trump White House about Flynn's false statements.