Table: election_results_1998_4
Columns: district
incumbent
party
first_elected
results
candidates

Question: How many times did incumbent ruben hinojosa get elected?
SQL: SELECT COUNT("results") FROM election_results_1998_4 WHERE "incumbent" = 'Ruben Hinojosa'

Question: What district is ruben hinojosa from?
SQL: SELECT "district" FROM election_results_1998_4 WHERE "incumbent" = 'Ruben Hinojosa'

Question: What district is nick lampson from?
SQL: SELECT "district" FROM election_results_1998_4 WHERE "incumbent" = 'Nick Lampson'