After a political detour that angered customers and tanked profits, the billionaire CEO returns to a Tesla in crisis.

Elon Musk and his many projects have had a rough couple of months, but SpaceX nailed an undisputable win for him on Tuesday.

Musk said “without me,” Trump would have lost the election, Democrats would control the House, and Republicans would have a more narrow majority in the Senate, after Musk donated more than ...