Hey, I'm Brian Stelter.

Welcome to Reliable Sources.

This is our weekly look at the story behind the story,

with some big guests coming up today,

including legendary journalist Jim Larer,

who covered the Nixon and the Clinton impeachments,

hear his view of the Trump impeachment coming up.

Plus, former Fox and Friends host Gretchen Carlson is here to share her new anti-NDA

initiative and to react to Nicole Kibbin playing her in bombshell.

And later the Washington Post Craig Whitlock is here with lessons learned from this century's

version of the Pentagon Papers. But first, you know where we're going to start today.

With the House of Representatives barreling toward an impeachment vote on

Wednesday, how did we get here? How did Trump get here? How? His sources of information led him astray, led him off course. I think it's pretty easy to make the case that we ended up here at the brink of impeachment

because of the bogus information Trump was watching and reading. Now of course his

choices, what he did with the alleged information, the alleged

shakedown, all of that, that's all his own doing.

He's responsible for what he did.

But what he was hearing from right-wing media

was crucial.

The conspiratorial bent of his favorite talk shows was critical.

This Ukrainian House of Lies is built on two main theories.

One is that Ukraine interfered in the 2016 election.

...