Former CIA director John Brennan says the indictment of Roger Stone suggests that people at the top of the Trump 2016 Campaign were aware of Russia’s effort to swing the election.

Brennan joined Morning Joe on Friday to break down Stone’s arrest for charges of obstruction, making false statements and witness tampering. Brennan started things off by saying the arrest wasn’t a surprise to anyone, including Stone, because he “has an established track record of being unethical and unprincipled and this is catching up to him.”

Brennan said the Stone indictment corroborates what he saw in the FBI regarding Russia’s connection to WikiLeaks, and he also predicted that further indictments will come from Mueller down the line.

John Brennan: "To me, all these indictments are going to be basically the compendium of the Robert Mueller investigation … I expect there to be a significant number, and a significant number of names that are going to be quite familiar to the average American." @MSNBC

— Kyle Griffin (@kylegriffin1) January 25, 2019

As the conversation moved towards the part of Stone’s indictment that says a “senior Trump Campaign official” was directed to contact Stone for information from WikiLeaks, Brennan said Team Trump isn’t “concerned about the reality of facts,” so he expects they’ll deny everything.

When asked what sort of story Mueller is trying to tell so far, Brennan answered “there was an extensive effort to try to influence the outcome of the election that involved the Russians, that involved U.S. persons, and that may have gone to the very top of the Trump campaign.”

“I think the shoes that are yet to drop are going to be the ones that are going to be the most profound and that will hit the people at the top of the organization.”

WATCH:

"And so I think the shoes that are yet to drop are going to be the ones that are going to be the most profound." – Fmr. CIA Director John Brennan pic.twitter.com/dVpXfoffc7

— Morning Joe (@Morning_Joe) January 25, 2019