Table: us_house_2000_election_3
Columns: district
incumbent
party
first_elected
results
candidates

Question: Who were the candidates in the district first elected in 1998 whose incumbent ended up being Paul Ryan?
SQL: SELECT "candidates" FROM us_house_2000_election_3 WHERE "first_elected" = 1998 AND "incumbent" = 'Paul Ryan'

Question: Who ran in the district elections won by Tom Petri?
SQL: SELECT "candidates" FROM us_house_2000_election_3 WHERE "incumbent" = 'Tom Petri'

Question: When was the first election in the district whose incumbent is Ron Kind?
SQL: SELECT MIN("first_elected") FROM us_house_2000_election_3 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 us_house_2000_election_3 WHERE "incumbent" = 'Ron Kind'