Question: Who were the candidates in the district first elected in 1998 whose incumbent ended up being Paul Ryan?
SQL: SELECT "Candidates" FROM "1-1341423-49" WHERE "First elected" = 1998.0 AND "Incumbent" = 'Paul Ryan';

Question: Who ran in the district elections won by Tom Petri?
SQL: SELECT "Candidates" FROM "1-1341423-49" WHERE "Incumbent" = 'Tom Petri';

Question: When was the first election in the district whose incumbent is Ron Kind?
SQL: SELECT MIN("First elected") FROM "1-1341423-49" WHERE "Incumbent" = 'Ron Kind';

Question: What year was the first election in the district whose election now was won by Ron Kind?
SQL: SELECT MIN("First elected") FROM "1-1341423-49" WHERE "Incumbent" = 'Ron Kind';