US President-elect Donald Trump has questioned whether the US should continue its One China policy. US policy since 1979 has respected China's stance on Taiwan, which it sees as a breakaway province. But Mr Trump said that without concessions from Beijing on trade and other issues, he did not see why that should continue. Relations with China became strained when Mr Trump took a phone call from Taiwanese President Tsai Ing-wen.<br/><br/>Speaking in an interview with Fox News broadcast yesterday, Mr Trump said that I don't know why we have to be bound by a One China policy unless we make a deal with China having to do with other things, including trade. <br/><br/>Mr Trump also said China was not co-operating with the US on its handling of its currency, on North Korea, or on tensions in the South China Sea.<br/><br/>In the same interview, Mr Trump said he does not believe a CIA assessment that Russian hackers tried to sway the US presidential election in his favour.