Vancouver Public Schools’ support staff union will go on strike effective Friday if a contract deal is not reached this week. By a vote of 93 percent, the Vancouver Association of Educational Support Professionals voted Tuesday to go on strike in light of continued disagreements over contract negotiations. About 500 people attended the general membership meeting at Fort Vancouver High School. The decision comes a week earlier than previously intended by VAESP members, who voted last month that if a deal was not reached by Feb.