'The storm is hitting': MSNBC's Ari Melber predicts something big 'is happening in the Mueller probe right now'

MSNBC chief legal correspondent and host of The Beat, Ari Melber, connected the dots to conclude that something big is currently happening in special counsel Robert Mueller's investigation.

"Tonight a new White House shake-up, more key witnesses in the Russia probe speaking out," Melber noted. "But also breaking right now, Donald Trump's top economic advisor, Gary Cohn, out. And the Russia probe, the storm is hitting after the calm."

"It has been, if you think about it, months of silence, several witnesses in the Mueller probe, keeping their silence until this week, they're speaking out," Melber noted. "It began of course with Sam Nunberg, who did his first on-camera interview on this show last night."

"But this is much broader than Sam Nunberg, after he spoke about his mentor Roger Stone, the former Trump advisor, as I just mentioned, Roger then spoke out in this unusual interview with Chuck Todd, it's another interesting development in the news about the Russia probe," Melber continued. "So that's two witnesses right there. In a moment, it will be three, I'll be joined by Simona Mangiante, a witness who was interviewed by Mueller's team about George Papadopoulos."

"First some context. You don't have to listen all that closely to these stories to see something is happening in the Mueller probe right now," Melber observed. "He's bearing down on new leads, he is hitting new people with subpoenas, witnesses are leaking, and while they usually do that anonymously, then you get Sam Nunberg, telling his stories out in the open."

Melber noted how Nunberg's comments revealed insight into Mueller's probe, but suggested the most important aspect was that he was speaking on record.

"It's actually a rare thing, I can tell you for a grand jury probe, it is the disclosures of information and evidence from primary sources, from people who have actually been in that room in Mueller's office, or who are headed there, and Mr. Nunberg isn't the first to disclose this kind of information or that didn't have an ax to grind," Melber continued. "Most of the stories we get about this probe, these headlines that all of us read, they come from witnesses leaking anonymously, and that's how we know what little we know about the probe."

"Those people leak, anonymously, out of self-interest," Melber highlighted. "Think about this, Nunberg leaked on the record, probably against self-interest."

Watch: