He goes on about how, "Impeachment, removal, criminal prosecution" means that "no removal" or acquittal in the Senate precludes criminal prosecution.
The flaws are obvious. A president could commit any crimes his last week in office (or last day) when there will not be time for impeachment and removal.
He could, say, take secret doc with him.
It also puts the entire burden of investigating criminal matters cannot fall to Congress.
But . . . very creative thinking.
5/