Table: election_results_1814
Columns: district
incumbent
party
first_elected
result
candidates

Question: Which party experienced a result of lost re-election democratic-republican hold?
SQL: SELECT "party" FROM election_results_1814 WHERE "result" = 'Lost re-election Democratic-Republican hold'

Question: How many districts have John C. Calhoun as the incumbent?
SQL: SELECT COUNT("district") FROM election_results_1814 WHERE "incumbent" = 'John C. Calhoun'