US President Donald Trump says he will keep economic pressure and a naval blockade on Iran while only “semi-negotiating”, even as his tone softens from threats of a “massive strike

US President Donald Trump says he will keep economic pressure and a naval blockade on Iran while only “semi-negotiating”, even as his tone softens from threats of a “massive strike”. Polls show US war fatigue and economic worries. Al Jazeera’s Rosiland Jordan reports.