This is unfolding EXACTLY they way I said it would.... American intelligence agencies routinely spy and pick up conversations of Russian agents. We have done this since the 1950s and it is pretty much common knowledge. It seems that no one in the Drumpf campaign gave this any thought at all. Anything the Trump campaign said to anyone at the Russian government would eventually be picked up by the American intelligence community.
That's exactly what happened.
It turns out Sessions had discussions about the Trump campaign and US / Russian related issues with Sergey Kislyak, and it was picked up by the American intelligence community. Not one conversation, by the way, but two of them.
The foreign policy adviser to a political candidate met with the Russians in secret and discussed US / Russian policy - and then lied about it under oath multiple times.
Ambassador Sergey Kislyak?s accounts of two conversations with Sessions ? then a top foreign policy adviser to Republican candidate Donald Drumpf ? were intercepted by U.S. spy agencies, which monitor the communications of senior Russian officials both in the United States and in Russia. Sessions initially failed to disclose his contacts with Kislyak and then said that the meetings were not about the Trump campaign.
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source)
The Trump campaign and the resulting Trump administration are such amateurs at politics that they never imagined anything they said to the Russians would be picked up by our own intelligence communities BY ACCIDENT.
This is just the tip of the iceberg too. Our intelligence community knows EVERYTHING. It will slowly drip out....