Donald Trump has made US$2.2 billion in his second term. How does that stack up against other US presidents?

At the end of June – in the run-up to America’s celebration of the 250th anniversary of the signing of the Declaration of Independence – President Donald Trump staged the White House’s first-ever professional sporting event. And while the UFC Freedom 250 evening of mixed martial arts was ostensibly part of the July 4 jamboree, Trump took the opportunity to promote his family’s business interests. Fighters were paid bonuses in US$1 stablecoins, the cryptocurrency owned by the Trump family,…