The union plans to hire about 75 people -- and possibly more depending on the economy

I know little about Unions. My question is why does the Union hire people?? I thought that private companies hired people who paid a third party to work. When they strike, the workers loose a pay check or checks for the time they are out and Union Officials still get a pay check. I don't get it . Still, why would the Union hire these elevator operators, etc., and not the company?

Hundreds Camp Out For Job Opps In Queens -