On July 21, US President Joe Biden announced that he will end his candidacy for re-election. 81-year-old Biden said, “it is in the best interest of my party and the country.” President Biden’s decision comes four months before Americans go to the polls on November 5. In a letter posted to his social media account, Joe Biden said it had been the greatest honour of his life to serve as president. Biden has endorsed Vice President Kamala Harris as the Democratic Party's new nominee. Watch the video to know more.