If you were conducting an investigation, what information do you require to present to ensure impeachment proceedings can commence?
That question doesn't parse very well WP.
If I were conducting an investigation, I'd
infuckingvestigate. You know, subpoena relevant documents (like Cheato's taxes, bankin iformation etc.) and people who might have information (like Roger Stone, Jeff Sessions, Carter Page, Gorkhov, Manafort, Kislyak, Rosneft, Gazprom - there's plenty to keep a real investigation going) and see what emerges and where it leads. As far as we know, nobody has even taken depositions from people like Sally Yates who are eager to testify.
Other than reporting directly to whichphilosophy, which you seem to think is an essential component,
that's what investigations do.
And that's what is either
not being done due to Republican obstruction, or is being done behind closed doors where Republican obstruction can't hinder it.
What part of that process don't you understand?