First and foremost, we must enforce existing trade laws and invest in the competitiveness of our workers and communities here at home, so that they complete on a level playing field. Then, we need to write the rules of the road for international trade through a modern, inclusive process--rules that protect our workers, safeguard the environment, uphold labor standards and middle-class wages, foster innovation, and take on big global challenges like corporate concentration, corruption, and climate change. If we don't, other countries will write the rules for us.