Union launching ads in fight with American Airlines

American's lawsuit argues that the petition to hold the union vote was conducted under old NMB rules that required 35 percent of a company's workforce to say it was in favor of voting on unionization. Congress raised the threshold to 50 percent in a bill to provide funding for the Federal Aviation Administration that was approved earlier this year.

But CWA communications director Candice Johnson said the airline's effort to block the union election was "another audacious example of how workers’ rights and basic democratic principles are under siege" after the union-related recall election in Wisconsin this week.