Three generational forces will converge this week — first in Washington, then in Beijing — in what could prove a hugely consequential stretch of Donald Trump's presidency. Why it matters: The coming days carry stakes measured in decades: war and peace in the Middle East, the trajectory of the U.S.-China relationship, and the rules governing the AI revolution. State of play: Trump's China summit was once seen as a de facto deadline for stabilizing the Iran war. But with Air Force One set to land