CREATE TABLE table_757 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

What is the district with Republican party in place?
SELECT "District" FROM table_757 WHERE "Party" = 'Republican'
SELECT "District" FROM "table_757" WHERE "Party" = 'Republican'