Democratic U.S. presidential candidate Bernie Sanders greets his supporters as he arrives at a rally at Key Arena in 查看全文

SYDNEY, AUSTRALIA – OCTOBER 04: The PLAN Qingdao from China enters the Harbour on October 4, 2013 in Sydney, Australia. Over 50 ships will participate 查看全文

PALM BEACH, FL – MARCH 15: Republican presidential candidate Donald Trump looks at reporters shouting questions to him after he delivered remarks 查看全文

US Republican Presidential candidates (L-R) Marco Rubio, Donald Trump, Ted Cruz and John Kasich pose for a photo at start 查看全文

FORT WORTH, TX – FEBRUARY 26: Republican presidential candidate Donald Trump signs autographs for fans at a rally at the Fort Worth 查看全文

Democratic U.S. presidential candidate and Senator Bernie Sanders (L) and former Secretary of State Hillary Clinton speak simultaneously as 查看全文

DES MOINES, IA – JANUARY 31: Democratic presidential candidate former Secretary of State Hillary Clinton speaks during a “get out to caucus” 查看全文

BERLIN, GERMANY – NOVEMBER 16: A young Muslim woman reads a message outside the French Embassy among candles, messages and flowers left 查看全文

Trade representatives attend at a press conference for the Trans-Pacific Partnership (TPP), a pan-Pacific trade agreement by trade ministers from 12 查看全文

US President Barack Obama speaks before signing H.R. 1295 Trade Preferences Extension Act of 2015, which includes assistance for Americans who 查看全文