(Portland, OR)  --  Portland Mayor Ted Wheeler is being elected to a second term.  The Oregonian reports Wheeler is leading the mayoral race with 47-percent of the vote as of late last night.  Challenger Sarah Iannarone follows with 41-percent.  Write-in candidates collected 13-percent of the vote.  Election officials say 90-percent of the votes have been counted as of 11 p.m. last night.