welcome back to "velshi & ruhle." we are hours away from the historic summit with north korea and president trump. he's tweeting about the g7 summit and the chaos that he left behind. in one of several tweets overnight from singapore, he wrote, quote, sorry we cannot let our friends or enemies take advantage of us on trade anymore. we must put american workers first. he wasn't talking about china. >> canada. >> our ally. >> here's a recap of how trump clashed with our allies in canada, before leaving the summit early. trump praised his fellow world leaders and agreed to sign the joint statement of official values. >> i would say that the level of relationship is a ten. we have a great relationship.em relationship is a ten. what was strong was the language that this cannot go on.