Bloomberg Ad Slogan Sounds Familiar

This might just be a coincidence, but today’s Google ad from Michael Bloomberg seeks campaign volunteers under the headline “Stronger Together.”
If you Google that phrase, the first link that pops up is for the Service Employees International Union, which also uses it as a slogan.
SEIU gave a huge boost to Barack Obama when they endorsed him during the Democratic presidential primary.
 

Bloomberg Ad Slogan Sounds Familiar