SINGAPORE — The United States meets China this week in a position of weakness. Since taking office, Donald Trump has handed China a strategic gift by abandoning a trade pact designed to offset Chinese power in the region, been obliged to grovel after offending China over Taiwan, and turned President Xi Jinping of China into an unlikely poster boy for climate change concern and an open global trading system.

So much for the art of the deal; to Asian nations like Singapore worried about China’s aggressive territorial expansion in the South China Sea, American policy under Trump has looked more like a blink-first exercise.

Now Trump — having given the Japanese prime minister, Shinzo Abe, the full Mar-a-Lago - is obliged to give Xi the same at his Florida resort. (Angela Merkel, merely the German chancellor, need not apply.)

Top of the Florida menu is North Korea and how far China will help Trump in rolling back Kim Jong-un’s nuclear and missile program. The thousands of acres of new land built by China in the form of artificial islands or expanded reefs in the Spratly Islands off the coast of the Philippines — an extraordinary act of lawless territorial expansionism — will also be part of the discussions. Then of course there’s bilateral trade and Trump’s unhappiness with the $347 billion U.S. deficit last year — although with North Korea’s belligerent Kim now in a position to hit Japan, that feels like a manageable irritant in the symbiotic U.S.-Chinese economic entanglement.