Mexican businessman Carlos Slim speaks during the "Expocomer 2005" trade show in Panama City, Panama, Wednesday, March 2, 2005. (AP Photo/Arnulfo Franco) **EFE OUT**
A California political watchdog agency says an immigrant rights group didn't violate lobbying laws, contrary to allegations from a company owned by the world's richest man, Mexican billionaire Carlos Slim.
The Los Angeles Times reports telephone tycoon Slim's Tracfone Wireless Inc. filed a complaint alleging Two Countries, One Voice used phony grass-roots organizations to influence the American government.
But the California Fair Political Practices Commission says there's insufficient evidence to support that allegation.
The rights group says Slim is a political enemy exacting retaliation over their accusations Slim and his companies use monopolistic business practices and their support for legislation that would slow his business' expansion.
For the fourth consecutive year, Slim was named the world's richest man by Forbes in March, when his net worth tallied $73 billion.