Vice-president Joe Biden announced that he would not run for president. This pretty much assures that the Democratic nominee will be Hillary Clinton.
From News from The Associated Press:
After months of tortured indecision, Vice President Joe Biden said Wednesday he won’t be a candidate in the 2016 White House campaign, solidifying Hillary Rodham Clinton’s status as the Democratic front-runner and the party’s likely heir to President Barack Obama’s legacy.
Standing under bright sun in the White House Rose Garden, Biden spoke movingly about mourning the recent death of his son, Beau, a process he said does not match the political calendar. While he said his family was emotionally prepared to undertake a grueling presidential campaign, they arrived at that decision too late for him to mount a credible bid for a job that has long been the north star of his political ambitions.