The new secretary-general of Nato has warned Donald Trump not to push Ukraine to sign a peace deal that would see the leaders of Russia and Iran “high-fiving”.

Mark Rutte also warned such an agreement would create a “...dire security threat not only to Europe but also to the US”.

So what should America be doing when it comes to Russia and Ukraine?

Jeffrey Sachs is an Economist and Public Policy Analyst, who is a Professor at Columbia University, and joins Kieran to discuss.

Image: Reuters