Voters in the Vancouver school district overwhelmingly supported a $458 million bond measure that would launch a major construction campaign, building new schools and repairing old buildings. Whether there’s enough of those voters, however, remains to be seen.The results of Vancouver Public Schools’ bond measure remained in limbo Tuesday night after only 24,306 ballots were counted. Bond measures must be approved by a supermajority of 60 percent or more, and must have a minimum turnout of 40 percent of the total number of votes in the last general election. That gave Tuesday’s special election, the first after 2016’s heated presidential race, a threshold of about 27,000 voters.That means even though 68.22 percent of voters supported the measure, it could fail.District Superintendent Steve Webb, however, said he was “incredibly optimistic” after results were released. He and a smattering of school officials and bond supporters gathered at the Bates Center for Educational Leadership as results were released.“There are still thousands upon thousands of uncounted ballots, the ballots that were dropped off today and put in the mail today,” Webb said.Clark County Auditor Greg Kimsey, an elected Republican who oversees the Clark County Elections Office, said he expects to count another 11,000 ballots, either dropped off on Tuesday or mailed. Assuming the same ratio of those ballots are from Vancouver as voted prior to election day – about 45 percent – the district could see nearly another 5,000 ballots, more than enough to cross the validation threshold.