Kentucky's ban on corporate contributions to political parties and state candidates is being challenged by a group pushing right-to-work legislation opposed by organized labor.
Protect My Check Inc. filed a lawsuit Thursday in Kentucky seeking to overturn the corporate contribution ban.
The federal lawsuit claims the ban violates equal protection and free-speech rights.
Protect My Check says it wants to make political contributions but is prohibited by Kentucky law. The group pushes legislation allowing employees at unionized workplaces to opt out of paying union dues without losing their jobs.
Protect My Check notes unions and limited liability corporations can contribute to candidates and political parties in Kentucky.
Defendants are Kentucky Registry of Election Finance officials. Registry officials declined immediate comment, saying they had not yet seen the suit.