Since everyone got this wrong, here is the correct decode.
TG is NOT being considered for SC, nor does he want to be.
He's not SC material; his heart, his passion is to be a prosecutor. That's what he was before in his career before being a legislator. As legislator he was frustrated by Congress' inability to hold bad people accountable. Congress has few weapons in its arsenal for this.
His actual quote said "instead I will be returning to the justice system"
JUSTICE SYSTEM is not the courts (that's judicial system). It's DOJ.
TG is being considered for DAG (taking RR's place) or possibly AAG. And next in line to be AG.