How many polls show different percentages for Tom Emmer and 38% for Matt Entenza?
create table table_20032301_3 (tom_emmer__r_ varchar, matt_entenza__dfl_ varchar, PRIMARY KEY (tom_emmer__r_))
select count(tom_emmer__r_) from table_20032301_3 where matt_entenza__dfl_ = "38%"