"I don't think [US President] Donald Trump is really motivated by US national security interests, or NATO, or Ukrainian interests. I think he wants the Nobel Peace Prize -- I think it's been on his mind since the first term," argues former US national security adviser John Bolton in an interview with FRANCE 24's Gavin Lee. "Putin thinks time is on his side. This is not the time for the US or Europe to give up and say 'let's get the best deal we can'," he adds.