Trump threatens to sue 'corrupt' BBC for $1.5b over 'salacious' documentary

A man in a suit looks on while sitting in a chair.

Donald Trump has sued multiple media organisations before. (Reuters: Jonathan Ernst)

In short: 

Lawyers for US President Donald Trump are threatening to sue the BBC for $US1 billion ($1.5 billion) over a "salacious" documentary that aired last year.

Britain's national broadcaster has conceded parts of the program had been "misleading".

What's next? 

A BBC spokesperson says the corporation will review Mr Trump's letter and respond in due course.