On Monday, Richard Trumka's AFL-CIO and a host of other labor unions and liberal activists will publicly target Hyatt, the hotel chain owned by wealthy supporters of President Barack Obama...

"Hyatt has singled itself out as the worst employer in the hotel industry by abusing its housekeepers and other hotel workers, replacing longtime employees with minimum wage temporary workers, and imposing dangerous and health-threatening workloads on those who remain," the release reads.

Perhaps most significantly, the escalating battle between Big Labor and Hyatt represents another issue of tension between Big Labor and President Obama during his re-election campaign. Billionaire Penny Pritzker, part of the family that owns Hyatt, served as Obama's 2008 presidential campaign national finance chair. Her cousin Thomas Pritzker, who serves as executive chairman of Hyatt, has also been a noted supporter of the president.