CREATE TABLE table_74003 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB, "Candidates" CLOB)

What is the party of Joseph Vance?
SELECT "Party" FROM table_74003 WHERE "Incumbent" = 'Joseph Vance'
SELECT "Party" FROM "table_74003" WHERE "Incumbent" = 'Joseph Vance'