Washington, March 14 -- President Donald Trump on Wednesday dangled the prospect of walking away from a new trade deal with China if it's not to his liking, just as he cut short his summit with North Korea's Kim Jong Un when the two sides failed to reach an agreement.

Trump spoke on the state of negotiations with China shortly before meeting with Republican senators on trade issues.

He spoke optimistically of the U.S. and China being able to reach an agreement, declaring that "China has not been doing well. We've been doing unbelievably well."

But Trump also seemed to hark back to last month's summit when asked whether he preferred that the two parties work out a trade deal before he meets with Chinese President Xi Jinping or whether h...