Complex sentence: He was endorsed by former Senate President Jovito Salonga and supported by former Pasig mayor Vicente Eusebio but lost to Robert Jaworski Jr., who won by a slim margin.
Split into simpler sentences: He was endorsed by former Senate President Jovito Salonga and supported by former Pasig mayor Vicente Eusebio. He lost to Robert Jaworski Jr., who won by a slim margin.