This proposal would dramatically undercut this precedent," the governors wrote.

What we need is labeling for all genetically engineered ingredients, and the proposal undercuts that.

Mr. Reagan's proposal to eliminate ballistic missiles undercut 40 years of alliance strategy with nary a breath of consultation.

The proposal to treat student athletes as employees not only fails to address their long-term needs for a meaningful nonathletic preparation, but also undercuts academic objectives by drawing attention from the student athlete's obligations as a student.

They say the proposals could undercut anti-pollution efforts in the Northeast by reducing pressure on other states that contribute to the region's air problems.

As the group nibbled on nachos, Mr. Rubin complained that the proposal would undercut American interests and influence in Asia, and that Japan would lend the money without insisting on tough economic reforms.

But House leaders, too, lack the votes they need, and there was immediate concern that Mr. Mitchell's proposal would undercut support for the House bill.

Some members argued that Mr. Aspin's proposal undercut their panel's power to review the Pentagon budget.

Thomas P. Gaffey, a Senate Democrat who is chairman of the Education Committee, said the proposal undercut the court order.

"If enacted into law, this proposal would undercut the prospects for a negotiated settlement and deal a serious blow to our security interests in this crucial region," the statement said.