Reporter: Sarah Ferguson

Four Corners investigates how the Murdoch run Fox News became a propaganda vehicle for Donald Trump and helped destabilise democracy in the United States. Featuring Fox News insiders, the program reveals how the network changed once Donald Trump entered politics and Rupert Murdoch took over.

In interviews with major Fox figures including Gretchen Carlson, the presenter who brought down famed network boss Roger Ailes; and former Fox political editor Chris Stirewalt, a key figure on the Decision Desk whose election night call triggered a Trump meltdown - the program examines the politics at work within the network and why it tied its fortunes to Donald Trump.

Four Corners takes you into the fall of Kabul. Interviews and videos from people on the ground capture the drama and chaos of the last 16 days and show the desperate lengths people were resorting to for a chance at freedom.