CREATE TABLE table_28888 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" TEXT, "Result" TEXT, "Candidates" TEXT)

Who is the incumbent in the Virginia 6 district?
SELECT "Incumbent" FROM table_28888 WHERE "District" = 'Virginia 6'
SELECT "Incumbent" FROM "table_28888" WHERE "District" = 'Virginia 6'