Washington | Former US president Donald Trump has a lot at stake in the federal criminal case lodged against him. He could, in theory, go to prison for years. But if he winds up in the dock in front of a jury, it is no exaggeration to suggest that American justice will be on trial as well.

History’s first federal indictment against a former US president poses one of the gravest challenges to democracy the country has ever faced. It represents either a validation of the rule-of-law principle that even the most powerful face accountability for their actions or the moment when a vast swath of the public becomes convinced that the system has been irredeemably corrupted by partisanship.