(Portland, OR)  --  All registered voters in Multnomah County should have their ballots for the May 21st Primary election.  If you haven't received your ballot, call your county elections office.  Oregon's Primary is closed, which means only voters registered with a party can vote for those candidates.  All voters will decide non-partisan races and measures.  Ballots need to be postmarked no later than May 21st if you mail it, otherwise drop it in a county elections dropbox by 8 p.m. May 21st.