** FILE ** President Barack Obama walks with German Chancellor Angela Merkel prior to the group photo at the G-20 summit at the Konstantin Palace in St. Petersburg, Russia, Friday, Sept. 6, 2013. (AP Photo/Pablo Martinez Monsivais)
Traditional Russian matryoshka wooden dolls depicting President Obama and Russian President Vladimir Putin are on display in St. Petersburg on Friday, Sept. 6, 2013, during the G-20 summit of world leaders. (AP Photo/Dmitry Lovetsky)