Election 2020 Joe Biden

Former Vice President Joe Biden speaks at the Biden Courage Awards Tuesday, March 26, 2019, in New York. (AP Photo/Frank Franklin II)

On Thursday, Joe Biden finally announced his decision to make the biggest splash in the 2020 Democrat presidential primary race: He's running. 

Biden's announcement came in the form of a video posted Thursday to his Twitter account.

He comes out hard in the video against Trump and the rise of white nationalism and overt racism on the streets of America, highlighting the moment Heather Heyer was murdered when she was run down by a vehicle in Charlottesville, Virginia, during a "Unite the Right" gathering and the president's defense of the individuals involved as "very fine people on both sides."

"We are in a battle for the soul of this nation. I believe history will look back on four years of this president and all he embraces as an abhorrent moment in time. But if we give Donald Trump eight years in the White House, he will forever and fundamentally alter the character of this nation, who we are, and I can not stand by and watch that happen...Everything that has made America, America is at stake." 

The calls for Biden to run date back to 2015, when a pro-Biden SuperPAC ran an ad, urging the former vice president simply to "Run, Joe." At the time, his decision not to run was based around the recent death of his son, former Delaware Attorney General Beau Biden, and the need to spend more time with his family working through that difficult loss. 

Since then, there have been teases and hurdles as the decision to run for the nation's highest office grew closer, with allegations of uncomfortable harassment leading up to Thursday's announcement.

Despite the delay to announce candidacy in what is now an incredibly crowded field and stories from women who have come forward to state Joe Biden's behavior has made them uncomfortable in the past, he announced Thursday he would seek to take on current sitting president Donald J. Trump in the general election come November 2020.