U.S. SENATE LEADERS SEE NO TRADE WAR BREWING The Senate's Democratic and Republican leaders praised President Reagan for retaliating against Japan for violating a semiconducter accord but dashed cold water on ideas it was the first shot in a trade war. Senate Democratic Leader Robert Byrd and Republican leader Bob Dole both told the Senate Reagan's decision was long overdue and urged Japan to open its markets to U.S. goods and stop dumping on world markets. Each noted in separate speeches that they saw no trade war over the issue, despite concerns in financial markets. "That fear has no basis in fact," Byrd said.