Donald Trump stands by remarks about not defending Nato members after backlash

Republican presidential candidate former president Donald Trump speaks at a campaign rally in South Carolina (David Yeazell/AP)

Former President Donald Trump has again said that if he returns to the White House, he would not defend Nato members that do not meet defence spending targets.

It comes days after he set off alarms in Europe by suggesting he would tell Russia to attack Nato allies he considered delinquent.