Pacquiao's political victory brings the 37-year-old, who had previously served in the Philippines' House of Representatives, ever closer to an eventual shot at the presidency.
"The Filipino slugger garnered more than 16 million votes, landing 7th among 12 new members of the Senate, a traditional springboard to the presidency," The Associated Press reports, adding that Pacquiao demurred when asked about his future political ambitions.
Judging by his popularity in his country, the presidency could be well within his reach.
"In the Philippines, I would say Pacquiao is like Elvis meets Justin Bieber, meets Michael Jordan, meets Bill Clinton," Ryan Songalia, a N.Y.-based Filipino journalist, told NPR in 2011.
By the time of the next presidential election, in 2022, Pacquiao will be old enough to run for the nation's highest office. (Candidates must be at least 40.) He served as a representative for the southern Sarangani province starting in 2010, saying he wanted to help improve the lives of poor people in his country.
"In my province — Sarangani province — the population is more than half-a-million and we don't have a hospital ... imagine that," Pacquiao told NPR in 2011.
He was roundly criticized, however, for prioritizing his boxing career over his legislative duties. Last year, the Chicago Tribune reported: "Congressional records show that during his first term in 2010-2013, Pacquiao was 'actually present' for 98 out of 168 session days, and only for four days [in 2014]."
So when the boxer mentioned his possible participation in this summer's Olympic Games in Rio during the proclamation ceremony for his Senate win, he said it would depend on the will of the people.
"I need to ask if the Filipino people will allow me to compete in the Olympics, Pacquiao said, according to a video from The Guardian, though he announced earlier this year that he was retired. "I need to study it first, and we are seeking the approval of the Filipino people."
