President Trump sent an ultimatum, not a negotiation.
If you know that Chicom has been blocking foreign companies from repatriating profit out of Chicomland, requiring foreign companies to set up Chicom party cells, blocking google/youtube/twitter for fear of truth exposing their crimes, selling fake products/medicines in massive government sponsored scales to solve unemployment, delaying WTO promises again and again, stealing western technologies by luring Chinese students by huge sum of dirty money, you'll understand why Chicom-US trade talk has totally broken down so swiftly.
Trump sent an ultimatumm, not a negotiation to not only China, but also Kim III.
In the grandest frashion, Chicom just celebrated 200th anniversary of Carl Marx' birth, the specter that has killed 100+ million people world-wide(50+ millon in Chicomland alone). Chicom has scrambled to hold together its house of cards until the inevitable total showdown with the West. Chicom will blame the West for its misery to its 1.3 billion slaves when the total collapse comes.