Simplify the following text for a Grade 8 native English-speaking person.
Original: Carlos SaÃ l Menem ( born July 2 , 1930 ) is an Argentine politician who was President of Argentina from 1989 to 1999 .
Simplified: Carlos SaÃ l Menem ( born in La Rioja , July 2 , 1930 ) was the president of Argentina from July 8 , 1989 to December 10 , 1999 .