I guess he was sitting on such a pot of money he overspent in his election campaign, but I call attention to the flip side of that coin and that is the source of that very money that he overspent, which was a loan from his own car dealership.
Il devait avoir une telle somme d'argent à sa disposition qu'il a simplement trop dépensé pendant sa campagne électorale. Toutefois, j'attire l'attention sur l'autre aspect de la question, à savoir la source de l'argent qu'il a dépensé en trop.