Simplify the following text for a Grade 8 native English-speaking person.
Original: Antonio RamÃ n Villaraigosa ( ; born January 23 , 1953 ) , born Antonio RamÃ n Villar , Jr. , is the 41st and current Mayor of Los Angeles , California , the third Mexican American to have ever held office in the city of Los Angeles and the first in over 130 years .
Simplified: Antonio Ramon Villaraigosa ( born Antonio Ramon Villar , Jr. on January 23 , 1953 ) is the mayor of Los Angeles , California .