The Republican leadership of the Minnesota House suffered a setback yesterday when it failed to get enough votes to pass its first big spending bill. The legislation was supposed to make up for budget shortfalls in state spending on things like unanticipated legal bills, and Republican leaders assumed it would pass without difficulty. Instead, a group of dissident Republicans joined with Democrats to defeat the legislation, and some lawmakers say the vote undermines Speaker Steve Sviggum's control of the House.