In Seneca Moral Letters 87
M. Cato Censorius, quem tam e re publica fuit nasci quam Scipionem, alter enim cum hostibus nostris bellum, alter cum moribus gessit, cantherio vehebatur et hippoperis quidem inpositis, ut secum utilia portaret.
I don't understand "quem tam e re publica fuit nasci quam Scipionem" both in grammar and sense. - grammatically it looks like fuit opens an object clause (acc + inf.) - but if that's so -- what does it mean? If not what is the subject in the quem clause?
Looking up Loeb translation wasn't helpful: "Marcus Cato the Censor, whose existence helped the state as much as did Scipio’s,—for while Scipio fought against our enemies, Cato fought against our bad morals ,—used to ride a donkey, and a donkey, at that, which carried saddle-bags containing the master’s necessaries.