POLITICAL BRIEFING

ON THE ROAD: Fresh from the success of “Bill and Al’s Excellent Adventure,” as some dubbed the bus caravan that Bill Clinton and Al Gore led from New York City to St. Louis last month, the Democrats may make such trips a recurring part of the path they’re trying to follow to the White House. . . . Using St. Louis as the point of departure this time, the two men are to board a bus Wednesday and head up along the Mississippi River, making their final stop Friday in Minneapolis. Two future bus journeys also are in the planning stages--a swing through Dixie in August and down the Pacific coastline from Seattle to San Diego in September. . . . A whistle-stop train tour through California’s Central Valley, meanwhile, may work its way onto the schedule within the next month.