President Clinton arrived in Venezuela at the beginning of a trip through Latin America. The President’s goodwill tour will take him next to Brazil and Argentina. The trip is also intended to build support for fast-track trade legislation before Congress. A committee vote last week in the House showed the strength of Democratic resistance to the proposal. The administration is offering $500 million over five years to help workers hurt by imports, but lawmakers are asking for more. While unions have been lobbying intensively in opposition, business groups appear to have gotten off to a slow start on supporting passage of the measure.