I think Mikey is still a bit miffed from the way he was treated during his short stay as a F1 driver.
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Well, the co-owner (Dan Towriss) of Andretti Global has taken over the day-to-day duties, and they have rebranded it TWG Global. Mario Andretti is on the board. Michael Andretti's role is unknown, but he endorses the deal.
It looks like it is a face-saving measure by Formula 1 to avoid the anti-trust investigation.