From Rep. Thomas Foley's (D- Wash.) response to President Reagan's radio address Saturday:

[O]n one issue the overwhelming majority of Americans are united. We will not permit the establishment in Nicaragua of Soviet or other hostile military bases or the introduction of offensive weapons that directly threaten other countries in Latin America or the United States.

There is no question that any president would have full bipartisan support in action necessary to remove such a threat.

But such a direct threat does not exist.

Nevertheless, the administration proposes expanding this proxy war in Nicaragua -- a war fought with American money, American weapons and Nicaraguan lives in which at best only a bloody stalemate can be achieved.

I say at best only a stalemate because as recently as (last) week official reports have concluded that it continues to be the consensus of the U.S. intelligence community that only U.S. forces could truly resolve the conflict in Nicaragua on a military basis.

Thus a bloody stalemate may not be the worst consequence.

In an attempt to break such a stalemate, or to relieve those under assault, we could find ourselves drawn deeper and deeper into the war. . . .

Is there another way?

We believe there is. Four countries of Latin America -- Mexico, Panama, Venezuela and Colombia -- the so- called Contadora countries, with the support of other major Latin American nations, have urged a regional solution based on negotiations. . . .

Could such negotiations be successful? With the wholehearted support of the United States, we believe that they could.