Crawford, Texas - President Bush and Mexican President Vicente Fox joined forces Saturday to promote Bush's plan for easing immigration laws, as Bush acknowledged that the proposal faces a tough time in Congress. Standing side-by-side in bright sunshine at Bush's Texas ranch, the two leaders said Bush's plan for a new temporary worker program would help both countries by eliminating the underground market for Mexican workers. The proposal would let an estimated 8 million workers who are in the United States illegally gain legal status as guest workers. "The people who come to this country make a significant contribution to...