Question for lawfag… Does discovery work the same in an impeachment case as a civil or criminal case?

Both sides may introduce evidence to support the truth of their respective

> >claims and evidence to cast doubt on the evidence of the other side. �For

> >the most part, each side must disclose to the other evidence in the first

> >category but not evidence in the second. �If the only purpose of some

> >evidence is to cast doubt on the other side's case, it does not have to be

> >disclosed beforehand.

Would that mean evidence proving fuckery could be hidden until used in defense of BS impeachment charges?