Donald Trump becomes the first ex-president to be charged with a crime. It comes after an investigation into hush money payments to a porn star.

What did he do? What could this mean for US politics? And how are Americans reacting to the breaking news?

The Americast team fire up their phones for an emergency episode as Trump shakes up politics – again.

HOSTS: • Justin Webb, Radio 4 presenter • Katty Kay, US special correspondent • Marianna Spring, disinformation and social media correspondent • Anthony Zurcher, North America correspondent

GET IN TOUCH: • Send us a message or voice note via WhatsApp to +44 330 123 9480 • Email Americast@bbc.co.uk • Or use #Americast

Find out more about our award-winning "undercover voters" here: bbc.in/3lFddSF.

This episode was made by Daniel Wittenberg with Alix Pickles and Natasha Fernandes. The technical producer was Ben Andrews. The senior news editor is Sam Bonham.