CREATE TABLE student (stuid DECIMAL, lname TEXT, fname TEXT, age DECIMAL, sex TEXT, major DECIMAL, advisor DECIMAL, city_code TEXT)
CREATE TABLE voting_record (stuid DECIMAL, registration_date TEXT, election_cycle TEXT, president_vote DECIMAL, vice_president_vote DECIMAL, secretary_vote DECIMAL, treasurer_vote DECIMAL, class_president_vote DECIMAL, class_senator_vote DECIMAL)

Find the distinct number of president votes.
SELECT COUNT(DISTINCT president_vote) FROM voting_record
SELECT COUNT(DISTINCT "president_vote") FROM "voting_record"