California holds a special election on May 21 to fill the vacant State Senate seat, 16th district, in the southern San Joaquin Valley. Five candidates will appear on the ballot: three Democrats, one Republican, and one member of the Peace & Freedom Party. The PFP candidate is Mohammad Arif. He is the first person, other than registered Democrats or Republicans, to appear on the ballot for any California special partisan election this year. This election will be the third special State Senate in California so far this year.