Bush Says Plan For Immigrants Could Expand
Pres Bush raises possibility that millions of illegal immigrants from countries other than Mexico might be able to earn legal status over time; White House courting Hispanics, but no decision has been made on task force proposal to allow some three million Mexican illegals to apply for permanent status; Democrats charge discrimination against other migrants; Bush does underscore opposition to blanket amnesty as in 1986; administration is trying to pick its way between Hispanic voters and Republicans opposed to rewarding lawbreakers (M)

