What powers are retained by the President during impeachment?

[Saint_Cad]

@Elendil_s_Heir

Rule IV only has the CJ presiding over a Senate trial for a VP “upon whom the powers and duties of the President shall have devolved,” not if he or she is simply serving as VP: impeachment | Wex | US Law | LII / Legal Information Institute

You’re absolutely right. Not enough coffee yet. In a trial of the VP Rule IX would be controlling. Basically the Senate chooses the Presiding Officer (as a committee chair) or could choose to have the VP preside.