Bye bye, Bolton

US National Security Advisor John Bolton has been fired. Or perhaps he resigned. On Twitter Donald Trump says he fired him whilst Bolton claims he quit. The hawkish security advisor has been one of Iran’s most vocal critics so what does his departure mean for the Middle East? Host James Haines-Young speaks to Douglas Silliman, former US Ambassador to Iraq, and Joyce Karan, The National’s Washington correspondent, about what Bolton’s role was in the Trump administration and what his departure might bring.