Final answer:
George W. Bush supported free trade to promote U.S. commerce and to follow supply-side economics, promoting economic growth and investment.
Step-by-step explanation:
George W. Bush supported free trade for two main reasons.
Firstly, free trade was seen as a way to promote U.S. commerce and culture globally, aligning with the vision of a 'new world order' that suggested a period of lasting peace and dominant American influence in global affairs. By reducing trade barriers, it was assumed that U.S. companies and industries, such as those in technology-focused regions like California's Silicon Valley, would benefit and grow.
Secondly, free trade agreements like the North American Free Trade Agreement (NAFTA) were consistent with the Republican supply-side economics ideology, which posited that lowering government regulations and taxes would lead to economic expansion, investment by the wealthy, and job creation.