John Avlon is a CNN senior political analyst and anchor. The opinions expressed in this commentary are his own. View more opinion articles on CNN.

(CNN) Footage of armed FBI agents storming Roger Stone's Fort Lauderdale, Florida, home was dramatic. But the real drama was in the 24-page indictment filed by special counsel Robert Mueller. Beyond Stone's shocking text messages detailed in the court document, one sentence really jumps out. It appears innocuous at first, buried on Page 4. But it raises questions that could potentially lead to evidence of collusion and embroil President Donald Trump himself.

Here's the sentence: "After the July 22, 2016 release of stolen DNC emails by Organization 1, a senior Trump Campaign official was directed to contact STONE about any additional releases and what other damaging information Organization 1 had regarding the Clinton Campaign."

There's a lot to unpack here, but the key phrase is this -- "a senior Trump Campaign official was directed to contact STONE about any additional releases."

The question isn't which senior Trump official contacted Stone, but who directed this person to do so. The only logical possibilities could fit in a phone booth. It's conceivable that the only people senior officials would take that kind of direction from would be either Trump or Paul Manafort, his campaign chairman at the time.

And perhaps those two men are about the only folks who would have held Stone in high enough esteem to ask another campaign official to enlist the notoriously dirty trickster as a middle man for such a suspect mission. Keep in mind that Stone is Trump's longest-serving political adviser. Their relationship dates back decades , and the political strategist has counseled Trump on his political flirtations long before his presidential campaign launched in 2015.

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