President Barack Obama delivers remarks at the Democratic National Committee winter meeting on February 6, 2010 in Washington, DC. (Brendan Hoffman/Getty Images)
US President Barack Obama (L) and Russian President Vladimir Putin (R) hold a bilateral meeting on the sidelines of the G8 summit at the Lough Erne resort near Enniskillen in Northern Ireland, on June 17, 2013. (JEWEL SAMAD/AFP/Getty Images)