Thread by @themarketswork

Strzok: "I'm beginning to think the agency got info a lot earlier than we thought and hasn't shared it completely with us. Might explain all these weird/seemingly incorrect leads all these media folk have."

"Would also highlight agency as source of some of these leaks."

From Johnson/Grassley letter to Inspector General of the Intelligence Community - Michael Atkinson
hsgac.senate.gov/imo/media/doc/…

Stzrok refers to "our sisters" in previously known text:

"Think our sisters have begun leaking like mad. Scorned and worried and political, they're kicking into overdrive."

"Sisters" and "the Agency" is almost certainly a reference to CIA.

Perhaps @JohnBrennan can shed light.

From Brennan's May 23, 2017 House Intelligence testimony:

"It served as the basis for the FBI Investigation"

More Brennan:

"Sometime this summer, there was information that the CIA had that was shared with the Bureau. But it wasn’t the only period of time where such information was shared with the Bureau."

And finally:

Brennan: "I made sure that anything that was involving U.S. persons, including anything involving the individuals involved in the Trump campaign was shared with the bureau [FBI]."

Strzok's email says "the agency" - indicates that the email likely refers to CIA.

Separate text with "sister" could have multiple meanings.

Other Agencies, even foreign.

If I was to guess, I would think all CIA references - but open to interpretation.