Table: election_results_1962_3
Columns: district
incumbent
party
first_elected
result
candidates

Question: What candidates were in the election when a republican was re-elected?
SQL: SELECT "candidates" FROM election_results_1962_3 WHERE "result" = 'Re-elected' AND "party" = 'Republican'

Question: What district is incumbent frank chelf from?
SQL: SELECT "district" FROM election_results_1962_3 WHERE "incumbent" = 'Frank Chelf'