US President Donald Trump said Chinese leader Xi Jinping was “extremely hard to make a deal with” in a comment that comes as frictions rise between the two countries, weeks after they reached an agreement to de-escalate trade tensions.

President Donald Trump said in a late-night social media post that Chinese leader Xi Jinping was very tough to make a deal with, raising questions about whether a fragile economic truce between the world’s two largest economies will hold.

The truce between the U.S. and China for a 90-day tariff reprieve looks to be crumbling. Both sides say the other is in violation of the agreement that ratcheted tariffs down from