Biden says ‘I stand squarely behind my decision’ after insurgents take Afghan capital – as it happened

President acknowledges his decision would be criticized by many but says he would not shrink from my share of responsibility'

• Biden faces biggest crisis of presidency over botched withdrawal
• Follow the latest Afghanistan news updates in our live blog

12.59am BST

- Joan E Greve and Maanvi Singh

12.29am BST

The South Carolina Republican senator Lindsey Graham called Joe Biden after his victory over Donald Trump to tell the president he only joined attacks on his son, Hunter Biden, as a bare minimum" to satisfy Trump supporters.

The detail was included in a lengthy profile of Graham and his Washington manoeuvres published by the New York Times. It said the call, intended to revive a friendship damaged by [Graham's] call for a special prosecutor to investigate the overseas business dealings" of Hunter Biden, was short, and not especially sweet".

Related: Short and not especially sweet': Lindsey Graham called Biden over Trump support