Former Vice President Joe Biden has officially announced that he is joining the race in a bid to replace President Donald Trump in 2020. 

In a big early move, Biden brought on 2016 press secretary for the Bernie Sanders campaign Symone Sanders as a senior campaign adviser, according to The Associated Press. In a tweet, Sanders said she doesn't feel the former vice president is perfect but believes he will "get it right."

In his announcement video, Biden directly attacked Trump on his response to the Unite the Right rally in Charlottesville, Virginia, after a woman was killed when an individual drove his car into a crowd of protesters.

"He said there were quote some very fine people on both sides," Biden said in his video. "With those words, the president of the United States assigned a moral equivalence between those spreading hate and those with the courage to stand against it. And in that moment, I knew the threat to this nation was unlike any I had ever seen in my lifetime."

The current president even commented on Biden, who has shown up as an early leader in polls of the race despite not being officially entered, with a tweet and a new nickname for him.

"Welcome to the race Sleepy Joe," Trump tweeted. "I only hope you have the intelligence, long in doubt, to wage a successful primary campaign."

Despite holding an early lead, the former vice president will have to answer questions about previous actions that have come back to haunt him. Recently multiple women came forward and shared stories of physical contact with Biden that made them uncomfortable as well as his role in the Anita Hill hearings.

Biden joins what is now the largest field of presidential candidates in history, growing the number to 20. And according to CNN, Biden will soon attend fundraisers in Pennsylvania now that he has officially launched his campaign and needs to collect funds after his competitors were able to get a head start.

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