CREATE TABLE table_18293 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

who is the the incumbent with dbeingtrict being massachusetts 2
SELECT "Incumbent" FROM table_18293 WHERE "District" = 'Massachusetts 2'
SELECT "Incumbent" FROM "table_18293" WHERE "District" = 'Massachusetts 2'