Table: election_results_1948_2
Columns: district
incumbent
party
first_elected
result
candidates

Question: Who is the candidate for the district Arkansas 2?
SQL: SELECT "candidates" FROM election_results_1948_2 WHERE "district" = 'Arkansas 2'

Question: Which district has the incumbent Wilbur Mills and a re-elected result?
SQL: SELECT "district" FROM election_results_1948_2 WHERE "result" = 'Re-elected' AND "incumbent" = 'Wilbur Mills'