Table: us_house_1868_elections
Columns: district
incumbent
party
first_elected
result

Question: What district has benjamin eggleston for incumbent?
SQL: SELECT "district" FROM us_house_1868_elections WHERE "incumbent" = 'benjamin eggleston'

Question: Which party is tobias a. plants the incumbent?
SQL: SELECT "party" FROM us_house_1868_elections WHERE "incumbent" = 'tobias a. plants'

Question: wWhich district has a retired republican hold with an incumbent of rufus p. spalding?
SQL: SELECT "district" FROM us_house_1868_elections WHERE "result" = 'retired republican hold' AND "incumbent" = 'rufus p. spalding'

Question: Which district has a retired republican hold and an incumbent of rufus p. spalding?
SQL: SELECT "district" FROM us_house_1868_elections WHERE "result" = 'retired republican hold' AND "incumbent" = 'rufus p. spalding'