China's ambassador to the United States, Xie Feng, has urged Washington to seek common ground with Beijing and pursue peaceful coexistence while warning that China stood ready to retaliate in the escalating trade war.

The owner of cookie company Ohana Nui says a 145% tariff is costing him thousands of dollars in higher costs and lost revenue.

With travel warnings and revoked visas, the two superpowers locked in a bruising trade war may make students and tourists their bargaining chips.