Voters in Iowa’s largest county MAY have elected to raise Polk County’s sales tax to six cents. It still is a nail-biter. More than 66-thousandvotes were counted last night — and the “YES” side has just 12 more votes than the “NO” side. The tally stands at 50-point-01 percent to 49-point-99 percent. Absentee ballots and “special” ballots cast yesterday by voterswho couldn’t verify their address at the polling place must still be counted. That could change the outcome of the election. If the one-centincrease in the sales tax is approved, the six-hundred million dollars expected to be collected over the next 10 years will be used to fix up Polk County schools and build new ones.