CREATE TABLE table_72367 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Results" CLOB, "Candidates" CLOB)

What district is ruben hinojosa from?
SELECT "District" FROM table_72367 WHERE "Incumbent" = 'Ruben Hinojosa'
SELECT "District" FROM "table_72367" WHERE "Incumbent" = 'Ruben Hinojosa'