washingtonpost.com Fox Laments 'Stalled' Relations Between U.S., Mexico Leader Says His Credibility Is Being Undermined by Bush's Failure to Speed Immigration Reform By Kevin Sullivan and Mary Jordan Washington Post Foreign Service Friday, May 10, 2002; Page A28 MEXICO CITY, May 9 -- President Vicente Fox said tonight that progress in relations with the United States has "stalled" and that Washington's failure to deliver concrete results on immigration reform is undermining his credibility at home. In a speech in New York to the Council of the Americas, a U.S. business organization concerned with hemispheric issues, Fox said he and President...