If only through support from companies that have profited from outsourcing.
Most people don't know that it was GW's dad that signed NAFTA into law on Dec 17 1992.
When Bill Clinton took over in Jan 1993 he gave a speech that he would seek approval of the act after adding provisions that would help protect American workers.
Nafta was a Bush vision from day one.
On December 17, 1992, Canadian Prime Minister Brian Mulroney, Mexican President Carlos Salinas de Gortari, and U. S. President George Bush signed the North American Free Trade Agreement (NAFTA), marking the end of a process that began on February 5, 1991,
More here:
http://www.mackinac.org/article.asp?ID=2582Pres George Bush signed the North American Free Trade Agreement (NAFTA) between the US, Canada, and Mexico at the Organization of American States headquarters in Washington, DC. Bush sees NAFTA as the first step towards a hemispheric trading block. The treaty signing was praised by proponents of free trade but was denounced by labor unions and proponents of protectionism. Pres-elect Bill Clinton has expressed support for NAFTA but feels that it needs to be rewritten to provide greater protections for labor and the environment.