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Michael Flynn. Photo: SAUL LOEB/AFP/Getty Images

As part of his guilty plea, President Trump's former national security adviser Michael Flynn assisted special counsel Robert Mueller in his investigations into the Trump campaign's discussions of WikiLeaks, as well as "potential efforts to interfere or otherwise obstruct" the special counsel, according to a new court filing.

Details: The filing, which states that Flynn is ready for sentencing, claims that the former top Trump aide informed prosecutors of multiple instances in which "either he or his lawyers received communications from persons connected to the Administration or Congress that could have affected both his willingness to cooperate and the completeness of that cooperation." The filing also states that Flynn "provided a voicemail recording of one such communication."

  • On the WikiLeaks front, Flynn gave prosecutors statements made in 2016 by Trump campaign officials after the release of the Podesta emails in which "the prospect of reaching out to WikiLeaks was discussed."

Why it matters: This filing suggests Flynn was a far more valuable witness to Mueller than previously known.

Read the full court filing:

Go deeper

Abbott says he'll hire Border Patrol agents who whipped at migrants

Texas Gov. Greg Abbott (R) on Sunday defended the actions of U.S. Border Patrol agents who charged at Haitian migrants on horseback, blaming the Biden administration for not preventing them from crossing the border.

Why it matters: Abbott's remark on "Fox News Sunday" comes amid increased backlash over the incident, with President Biden saying, "I promise... those people will pay,” and the Department of Homeland Security launching an investigation.

Everyone wants to be an influencer

Illustration: Aïda Amer/Axios

The number of people looking to become online influencers has exploded during the pandemic.

Why it matters: Almost anyone can find themselves in a position to become an influencer, and brands are throwing billions of dollars at online content creators.

At least 3 dead after Amtrak train derails in Montana

Photo: Jacob Cordeiro/Twitter

An Amtrak train derailed near Joplin, Montana, resulting in at least three deaths and multiple injuries to passengers and crew on Saturday, per authorities and a company statement.

The big picture: 141 passengers and 16 crew members were estimated to be on the Empire Builder train, traveling from Chicago to Seattle and Portland, when eight of the 10 cars derailed about 4p.m., Amtrak said early Sunday.