"If democrats nominate me, I believe we can beat Donald Trump," former Vice President Joe Biden tells a crowd of supporters as he celebrates, with his wife and his daughter, his crucial win in South Carolina. With this victory, the 77-year-old candidate revives White House hopes as he positions himself as the leading rival to frontrunner Bernie Sanders.

[COMPLETES VIDEOS: VIDI1PH2KL_EN & VIDI1PH2DR_EN]