Complex sentence: Presently, Rubin is the President and Chairman of the Board of the American Society of Mexico, a non-profit organization that was founded in 1941, aims to promote U.S. values in Mexico, and the US Republican Party in Mexico.
Split into simpler sentences: Presently, Rubin serves as the President and Chairman of the Board of The American Society of Mexico. This non-profit and apolitical organization that was founded 75 years ago, serves to promote U.S. values in Mexico, and the US Republican Party in Mexico.