CREATE TABLE table_18427 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

how many voted in the texas 6 section
SELECT "First elected" FROM table_18427 WHERE "District" = 'Texas 6'
SELECT "First elected" FROM "table_18427" WHERE "District" = 'Texas 6'