Donald Trump has become the first former president to be criminally indicted, facing charges related to his attempts to hide hush money payments to an adult film star paramour in 2016. This is the latest barrier shattered by the 45th president, who has already been impeached twice and is now campaigning for the 2024 Republican presidential nomination. The indictment poses a critical challenge to the American system of justice and could have far-reaching implications for the already polarized republic.