Suppose Biden ordered Seal Team 6 to assassinate Trump. Would Biden be completely immune from any prosecution as long as 34 of the Democrats in the Senate refused to convict him on an impeachment vote?
A sweeping claim of presidential immunity sounds fine as long as you like the President who’s claiming it.
Immune from criminal prosecution until convicted by the senate and removed from office. That’s the process the US Constitution delineates, whether we like or not. But we don’t have to conjure hypotheticals. Should Obama have been prosecuted for killing two American citizens in a military op? Should Biden be subject to prosecution for killing aid workers in Afghanistan?
Are you suggesting that would be done as an official duty? I think not.
That would be an unlawful order to murder a civilian. The Seals would not follow such an order. NSA or CIA may follow a clandestine order.