Their full responses, edited for clarity and style, are below.
Because the Obama administration had expelled 35 Russian diplomats that same day to retaliate against Moscow's meddling in the 2016 campaign, my column posed the basic question: "What did Flynn say, and did it undercut the USA sanctions?"
Flynn, who served in Donald Trump's administration for just 24 days before being forced to resign for misleading Vice President Mike Pence about his Russian Federation contacts, could be sentenced to up to five years in prison. What was he covering up?
Disgraced national security adviser Michael Flynn is prepared to testify that President Trump "directed him to make contact with the Russians" during last year's presidential campaign, according to reports.
Days after Flynn's interview with the Federal Bureau of Investigation, then-acting attorney general, Sally Yates alerted White House counsel Don McGahn that Flynn was potentially compromised and vulnerable to blackmail because of discrepancies between public assertions - including by Vice President Mike Pence - that Flynn and Kislyak had not discussed sanctions and the reality of what occurred.
Flynn didn't speak in court, other than to say he would plead guilty.
The US continues to reel as further information comes out about apparent attempts by Russian Federation to influence the recent presidential election and sow discord within America though fake social media accounts.
The public lies about the December 29 call began to cascade. The Israeli government then reached out to the Trump transition and asked for help in pressing for a veto of the resolution, a senior Israeli official told CNN at the time. Their silence condoned the lies.
Flynn's pledge to cooperate with Mueller could lead to further charges, but an attorney for Trump, Ty Cobb, said no one else was affected by this latest development. Now we'll know the truth. "My guilty plea and agreement to cooperate with the Special Counsel's Office reflect a decision I made in the best interests of my family and of our country".
A report from the Washington Post then said that Flynn has indeed discussed sanctions, reportedly causing rifts with senior colleagues who had defended him.
Former FBI director James Comey has testified before Congress that the president asked him to drop any investigation of Flynn: "I hope you can see your way clear to letting this go, to letting Flynn go", Trump told Comey, according to the since-fired FBI director.
Figures in the online Trump loyalist movement that describes itself as "New Right" rushed to downplay the news earlier this morning that Flynn would plead guilty for lying to the FBI and claimed the revelation only served to discredit the investigation into whether the Trump campaign sought assistance from the Russian government.
Mueller's prosecutors have been investigating a wide range of potential charges against Flynn.