In the US, where concern has been heightened by weak recent trade numbers, President Barack Obama is pushing for Congress to give him Trade Promotion Authority (TPA), previously known as fast-track authority, to conclude the mega-regional Trans-Pacific Partnership (TPP) with 11 Asian and Latin American countries. Without TPA, trading partners refrain from offering their best concessions, correctly fearing that Congress would seek to take “another bite of the apple” when asked to ratify any deal.