Can Trump still deliver China deal after Huawei arrest?

Instead, the detention of Chinese tech giant Huawei’s chief financial officer, Meng Wanzhou, in Vancouver, British Columbia, triggered a market meltdown Thursday amid uncertainty about whether President Donald Trump can strike a lasting trade deal with Beijing.

The volatility put a spotlight on doubts about Trump’s ability to deliver on his promises with China — and exposed a clash between his policy goals in China and his efforts to crack down on technology companies and other actors.