New research from the Center for Union Facts shows that, from 2010 to 2016, labor unions sent more than $1.1 billion in member dues to anti-Republican advocacy groups—without prior member approval. It is the most comprehensive analysis of union advocacy spending ever done.
The Clinton Foundation, Democratic Governors Association, and Planned Parenthood featured prominently, even though 40 percent of union household members vote Republican in any given election cycle.
Under current labor law, union officials can spend dues money on political advocacy without obtaining opt-in permission from their members. The Employee Rights Act, which is now co-sponsored by more than 170 members of the House and Senate, would protect employees by requiring union leadership to obtain prior approval before spending dues money on political advocacy. Roughly 80 percent of Americans—including those in union households—support the paycheck protection provision and other ERA reforms.
You can see the research here: