"The roughly 30-minute briefings have included a PowerPoint presentation about how congressional oversight works and best practices for handling it ...

Staff from the counsel's office have encouraged political appointees to be careful about what they put in writing and provided guidance for how to respond to congressional inquiries in a timely manner."

Said one White House official: "It's obvious to everyone that it's very likely. It was a sober-eyed conversation."

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"... be careful about what they put in writing"

This is always a good idea in any criminal enterprise.