China and the US are the contemporary world's two greatest powers. And yet there is a lack of consensus about how far they are able to work with each other, accommodating China's new pre-eminence and the US' need to adapt and change its posture particularly in the Asia Pacific region. In terms of hard power, for the foreseeable future the US will still be overwhelmingly preeminent. And yet in other areas, we are already seeing changes to the role it plays, particularly under Donald Trump, and the ways in which it is trying to craft a new narrative for the region with, and around, China. This chapter attempts to describe how this new narrative might unfold.