Jason Crow: “I couldn't agree more with that effort and give Mr. Waltz a lot of credit for helping lead that and open the aperture…”

Impeachment is one tool of many, and I won't hesitate to use that tool if we need to.

Certainly, stopping leaks and protecting classified information is really important, and I would always support that," said Crow.

And he's created an environment of fear. He's pushed out journalists. He's pushed out media.

The probe "part of his effort to create fear and to clamp down on information coming out of the Pentagon.