I do not see why a President can not perform Presidential duties while in house arrest where he can not leave the White house as a Presidential Jail
I am just saying they could put him in jail while in office and he could still Veto stuff if they wanted to do things that way
I am not saying whether or not they consider it to be that way legally
The laws of the United States of America only exist in people's minds and are an imaginary thing not a real thing
How people choose to physically act on these imaginary beliefs has a real impact on the world
There is no such thing as objectivity when it comes to U.S.A. laws
There are only people's subjective opinions
An objective understanding of people's subjective opinions allows an objective understanding of how people will act based on their subjective delusions
As for state crimes, I assume they'd be stayed until he's out of office. Otherwise, states would regularly use their police powers to interfere with the executive and in violation of the Supremacy clause.