WASHINGTON, D.C. -- President Bush faces a major rebellion within his own party if he follows through on a promise to push legislation that would offer millions of illegal immigrants a path to U.S. citizenship. Almost no issue divides Republicans as deeply. To get the guest-worker initiative through Congress, Bush will need to go against the wishes of many Republicans and forge bipartisan alliances. That's what President Clinton did in 1993 to win approval for a free trade agreement with México and Canada, over objections of a large bloc of congressional Democrats. The chance seems slim for finding common ground...