DES MOINES, Iowa (AP) – The Iowa Senate has rejected a bill that would have let results from an errant vote stand in the town of Adel.  The Des Moines Register reports that Adel voters approved the 1-cent local sales tax in August 2010. But then officials learned the election was improperly conducted. Iowa law says that unless a town has at least 50 percent of a county’s population, then the vote must include other areas of the county, even though it would apply only to a specific jurisdiction.  City officials say that even if the vote had been taken countywide, the measure would have passed.  City leaders asked the Legislature to approve a legislative exception so the Adel vote could stand.  The House approved the bill. On Tuesday the Senate didn’t.