Transcript for Donald Trump's recent comments on US allies and rivals

Yeah. Just hours after the president left the G-7 summit where he. Frustrated world leaders by refusing to pack away from his plans to impose stiff tariffs on aluminum and steel from Canada and other allies. To Dell calls that insulting and vowed to retaliate by slapping tariffs on American goods. It is not something we relish doing but it is something that we absolutely will do as Canadians. Polite we're reasonable but we also will not be pushed around. Trump was furious in an angry tweet calling Trudeau varied as artists and wheat. And then a stunning decision the American president refused to sign the traditional statement of solidarity with the G-7 allied. President gushing praise for him is raising eyebrows. Obviously and anybody who takes over any situation like unit. Point six years of age and. Runner and runner tough but I think we understand each other. But in measles and done some really. Yeah but showed a lot of other people than some really bad. And asserted his gunners and what I apologize because I said such good things about issues of don't worry it's only depressed and now especially after this two days. And we're your prime minister. I would say the highest level of special. He had this relief. Sad when Germany makes a massive oil and gas deal with the Russian. Where you're supposed to be guarding against Russia and Germany goes out pays billions and billions of dollars a year to Russia. But in Germany is totally controlled by Russian. He's distanced himself from one of the country's closest allies in an interview with CBS president trump lashing out at the European Union's. I think the European Union as the flow what they do to us and trade. Now you wouldn't think of the European Union but there are far. While president trump has embraced Russia a historic US adversary in recent days. I think that we would have a chance have a very good relationship with Russia and a very good chance a very good relationship with president broad I would hopes.

This transcript has been automatically generated and may not be 100% accurate.