CREATE TABLE table_18268 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

Name all the candidates vying for Albert Bustamante's seat.
SELECT "Candidates" FROM table_18268 WHERE "Incumbent" = 'Albert Bustamante'
SELECT "Candidates" FROM "table_18268" WHERE "Incumbent" = 'Albert Bustamante'