President Obama chose Nike headquarters ... to deliver a defense last week of his proposed Trans-Pacific Partnership. It was an odd choice of venue. While Nike still makes some shoe components in the United States, it hasn't assembled shoes here since 1984. Last year, a third of Nike's remaining 13,922 American production workers were laid off. Most of Nike's products are made by 990,000 workers in low-wage countries whose abysmal working conditions have made Nike a symbol of global sweatshop labor. America has a huge and growing problem of inequality. Most Americans are earning no more than the typical American earned 30 years ago, adjusted for inflation - even though the U.S. economy is almost twice as big. Since then, almost all the economic gains have gone to the top. The so-called economic recovery that began in 2009 has ... had no effect on the wages of most Americans. Jobs are coming back, but wages are still stuck in the mud. Here's where Nike comes in. Congressional Republicans - and the president - want a giant trade deal that protects corporate investors but will lead to even more offshoring of lower-skilled American jobs. We know that when Americans displaced from manufacturing jobs join the glut of Americans competing for personal service jobs ... their wages decline. It's not Nike's fault. Nike is simply playing by the rules. But the rules are tilted against the interests of most American workers.