. . .We have to link these fights in a new and deeper way than ever before,” said Mary Kay Henry, president of the Service Employees International Union, which represents over 2 million workers in the U.S. and Canada. . .The service workers union has partnered with the International Brotherhood of Teamsters, the American Federation of Teachers, United Farm Workers and the Fight for $15 and a Union, which was launched in 2012 by American fast food workers to push for a higher minimum wage. . .