Garcia has collected the vast majority of money used to fuel his campaign from SEIU, the Chicago Teachers Union and national teachers unions, including $100,000 from the transit workers union on Monday. But the poll found Garcia trails Emanuel among union households, with the mayor at 47 percent to 39 percent for Garcia. The mayor has the backing of several of the trades unions, including plumbers, pipefitters, carpenters, painters, Teamsters and laborers. On Monday, Emanuel reported another $1.2 million in campaign contributions, including $150,000 from a political action committee affiliated with the operating engineers union.