Here's the mistake US presidents make when they meet Putin -- Business Insider

US President Donald Trump and Russian President Vladimir Putin meet for the first time Friday at the G-20 summit in Hamburg, Germany, beginning a new chapter in the relationship between the world's two largest military and nuclear powers.

With Russian foreign policy in direct opposition to US interests abroad, and a grinding investigation into the Trump campaign's possible collusion with Russian hackers in the 2016 presidential election, pundits look to the meeting as a high-stakes first step in a relationship that could be defining for both men.  ...
http://www.businessinsider.com/trump-obama-putin-russia-meeting-mistake-2017-7