Biden, 76, had been wrestling for months over whether to run. His candidacy will face numerous questions, including whether he is too old and too centrist for a Democratic Party yearning for fresh faces and increasingly propelled by its more vocal liberal wing.
The core values of this nation… our standing in the world… our very democracy...everything that has made America -- America --is at stake. That’s why today I’m announcing my candidacy for President of the United States. #Joe2020https://t.co/jzaQbyTEz3
Still, he starts as the leader of the pack in opinion polls of a Democratic field that now will total 20 contenders seeking the chance to challenge President Donald Trump, the likely Republican nominee, in November 2020.
'We are in the battle for the soul of this nation,' Biden said in a stark video released online, calling on voters to deny Republican US President Donald Trump a second term in office.