President Trump's attitude, which tends to be anti-Bitcoin, has raised the discourse that he could forbid the ownership of Bitcoin for citizens of the United States (US) in the future.
This discourse is based on two possibilities, namely Trump's tweet in 2019, that Trump is not a Bitcoin lover and second is a recognition of Trump's similar attitude, as stated in the book by John Bolton, a former White House security adviser.
Responding to the discourse of a possible ban on Bitcoin ownership, many people say the most likely action is an aggressive step by the government in dealing with laundering crimes related to Bitcoin and other crypto assets. Direct banning seems impossible, because Bitcoin is practically outside the structure of the country.
If other Presidents from different countries have taken attention to Bitcoin and the whole Cryptocurrency Industry, President Trump is also capable of doing that. It just depends on whether how he will take the information regarding Bitcoin. If he sees it as an opportunity on where the government can benefit, he might place some rules and regulations regarding on how to use it BUT if he sees it as a threat, then he can possibly ban it.