A potential trade deal between the world’s top two economies hinges on Donald Trump and Xi Jinping overcoming core differences in their negotiation styles, former acting White House Chief of Staff Mick Mulvaney said.

President Donald Trump says his first conversation with Chinese leader Xi Jinping since returning to the White House had a “very positive conclusion," announcing the two countries will hold trade talks in hopes of breaking an impasse over tariffs and global supplies of rare earth minerals.

For months, President Donald Trump has suggested his personal relationship with China’s Xi Jinping will be what unlocks the world’s most consequential trade dispute. Yet he hasn’t been able to get Xi on the phone — until,