Rick Warren is often called "America's most influential spiritual leader." He founded Saddleback Church in Orange County, California, which is now one of the largest and best-known churches in the world. He also founded the Purpose Driven Movement, a network of tens of thousands of churches from all denominations in 160 countries. He has trained over 350,000 pastors worldwide. Calling him a "spiritual entrepreneur," Forbes magazine said, "If Warren's ministry was a business it would be compared with Dell, Google, or Starbucks in impact." Rick and Kay Warren give away 90 percent of the profits from their books to charitable causes, including their global P.E.A.C.E. plan and Acts of Mercy, which services those infected with and affected by AIDS. Warren gave the invocation at President Barack Obama’s inauguration in January 2009.