CREATE TABLE table_695 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

What district was incumbent Jerry Kleczka in?
SELECT "District" FROM table_695 WHERE "Incumbent" = 'Jerry Kleczka'
SELECT "District" FROM "table_695" WHERE "Incumbent" = 'Jerry Kleczka'