With the 2024 presidential race underway, FRONTLINE investigates the roots of the federal criminal case against former President Donald Trump stemming from his 2020 election loss. In this special audio version of Democracy on Trial, veteran political filmmaker Michael Kirk and his team examine the House Jan. 6 committee’s evidence, the historic charges against Trump and the threat to democracy.

In this first installment, former President Donald Trump is charged with crimes in office — an unprecedented event in American history. The Jan. 6 Select Committee report starts to build a case against former President Donald Trump, which will go on to become a blueprint for special counsel Jack Smith. And a central question emerges for the committee: What did former President Trump know about the 2020 election results, and when did he know it?

Tune in next week for the second installment of the audio-only version of the documentary here on The FRONTLINE Dispatch. Watch Democracy on Trial in full on FRONTLINE’s website, YouTube or the PBS App.