US President Donald Trump once called cryptocurrency a “scam”. It’s now a major moneymaker for him: his just-released annual financial disclosure shows he made more than US$1 billion from cryptocurrency last year.

This news has raised the ire of Trump’s critics. Juliana Stratton, the Illinois lieutenant governor and a Democratic Senate candidate, accused Trump of using his public office “to make billions while American families struggle to afford their basic needs. His infinite greed is disgusting.”

The White House denied Trump or his family has engaged in conflicts of interest. Deputy press secretary Anna Kelly said “all actions by President Trump and his administration are taken in the best interest of the…