Table: election_results_1968_5
Columns: district
incumbent
party
first_elected
result
candidates

Question: What party does incumbent edwin reinecke represent?
SQL: SELECT "party" FROM election_results_1968_5 WHERE "incumbent" = 'Edwin Reinecke'

Question: Who were the candidates in the election that featured incumbent don edwards?
SQL: SELECT "candidates" FROM election_results_1968_5 WHERE "incumbent" = 'Don Edwards'