Updated (still unofficial) results:
With 16 of 16 precincts in Arizona's Legislative District 18 (West Mesa) reporting:
Total Votes Percent
PEARCE, RUSSELL 9,188 45.25
CORTES, OLIVIA (w/d) 252 1.24
LEWIS, JERRY 10,816 53.26
as of 2:15pm MST 11-9-11
There are still provisional ballots that must be counted, but it would be unreasonable to think Pearce could overcome a 1,628 vote deficit, even if he received 100 percent of those provisional votes.