Setting the nation's trade agenda has often been a tug of war between Congress and president. The fast-track legislation of recent years has empowered the White House with negotiating the terms of trade agreements, but they still have to pass Congress to become law. For all the critics over China's trade practices and second-guessing over existing trade pacts such as Nafta and Cafta, the US trade sector is booming, thanks partly to the weak US dollar. Trade, however, remains a high profile and emotional issue because it often means keeping jobs at home or saving them altogether.