Today we can know how much Trump Bitcoin wallet is worth, the more popular you are in this world the easier it is to figure your Bitcoin worth, unless you don't share your address at all, this is the only way your identity remain unknown.
I really don't think we can know Trump's Bitcoin wallet, honestly. I am not the USA citizen and don't know about mandatory responsibility of the USA President to share all of his information including wealth and Bitcoin wallet adresses to their citizens.
If you know it, and know the source link of such mandatory responsibility as well as the Bitcoin wallet addresses owned by Donald Trump, you can share. I believe not only me but many people are curious to know it.
Bitcoin with open source, and non custodial wallets can give us rights and good tools to have privacy and even anonymity but it depends on our practice.