Obama's time as leader of the US is coming to an end - his term concludes next year. Wannabe presidents have already joined the race to the White House. And as President Obama goes through the final year of his rule, Washington suddenly changes its tone – now Iran is an appropriate nation to talk to, and it's okay to meet with Cuban and Venezuelan leaders. But what is in that change? Has Washington finally dropped its previous policies? What does Obama want to achieve? And will the new, as yet unknown, leader of America make any difference? We pose these questions to prominent historian, author of bestsellers on US foreign policies, William Blum, who is on Sophie&Co today. Follow @SophieCo_RT RT LIVE http://rt.com/on-air Subscribe to RT! http://www.youtube.com/subscription_center?add_user=RussiaToday Like us on Facebook http://www.facebook.com/RTnews Follow us on Twitter http://twitter.com/RT_com Follow us on Instagram http://instagram.com/rt Follow us on Google+ http://plus.google.com/+RT Listen to us on Soundcloud: https://soundcloud.com/rttv RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.