According to Columbia Law professor Daniel Richman, state and federal charges usually have "no overlap, or almost no overlap, that would ring Fifth Amendment chimes in the absence of the dual sovereign analysis", and so the impact of overturning the separate sovereigns doctrine would be minimal
His testimony on Thursday, where he openly denounced a a political party, should deny him the court. He outright lied under oath multiple times, and should be removed from the Federal Bench. The ACLU now opposes him. The American Bar Association wants that FBI investigation and a slow down to the confirmation
Going to be an interesting week.