Congress openly repudiated a sitting president’s foreign policy over Bosnia.

Evidence

After Srebrenica, the U.S. Senate passed by an overwhelming margin the bipartisan Dole-Lieberman bill requiring the United States unilaterally to lift the arms embargo against the Bosnians. Both the vote and the speeches that accompanied it were a historic bipartisan repudiation of the foreign policy of an American president still in office. — Michael A. Sells, The Bridge Betrayed, 332