Former national security advisor Susan Rice
Rice, who also served in the Obama administration with Biden, tweeted her endorsement of Biden on Monday.
"There is no one kinder, more empathetic and caring than Joe Biden," she wrote. "He will lead America with the same deep compassion and decency."
Source: Twitter
Former Senate Majority Leader Harry Reid
The former US Senator from Nevada — once the most powerful Democrat in the Senate — endorsed Biden. He said the former vice president's character stands "in the starkest contrast to Trump's amorality, corruption and utter incompetence."
"Biden will be a much-needed stabilizing force following Trump's disastrous term, offering a positive and progressive alternative to Trump's dark vision of racism, xenophobia and policies built on cruelty and exclusion," Reid said in a statement.
"I believe Biden is best able to defeat Donald Trump and enact the policies we all care about."
Source: USA Today