Even if you are correct about Trump's phrasing, the context completely destroys your argument. In the quote he clearly claims that the post office isn't making money from this deal. If they aren't making money, then they are either just breaking even, or are losing money. There's no other option. The next sentence, he says that "they lose a fortune". When the entire tweet is considered as a whole, the meaning is pretty clear. Trump is claiming that the post office isn't making any money from the deal with Amazon, but is instead actually losing money.
My point is, even if he is claiming that the post office would benefit from a better deal, he's also claiming that the current deal isn't making them any money, and they are losing money. That is just not true.
My point is, even if he is claiming that the post office would benefit from a better deal, he's also claiming that the current deal isn't making them any money, and they are losing money. That is just not true.