De Blasio, who is set to campaign with Sanders in Nevada ahead of the caucuses there, became the first former 2020 contender to back Sanders. He’ll join Sanders at a rally Sunday in Carson City.
“Mayor Bill de Blasio knows that the only way we can defeat Donald Trump is by uniting people from all backgrounds around an agenda that speaks to the needs of working families,” Sanders said in a statement to CNN. “Jane and I grew up in Brooklyn and we are so proud to have the support of a New York City mayor fighting every day to improve the lives of New Yorkers. Bill is a leading example of what bringing the Democratic Party together around so-called ‘radical ideas’ like universal pre-K, paid family and sick leave, and defending immigrant neighbors can do for our country.”
“I am standing with Bernie because he stands with working families, and always has,” de Blasio said in a statement on Friday night. “New Yorkers know all too well the damage caused by Donald Trump’s xenophobia, bigotry and recklessness, and Bernie is the candidate to take him on and take him down. I have called for a bold, progressive agenda, and that’s exactly what Senator Sanders has championed for decades. I am proud to endorse a true progressive leader who will fight for working New Yorkers and families across the country.”
Bloomberg’s campaign declined to comment when contacted by CNN.
Rep. Alexandria Ocasio-Cortez, a New York Democrat who endorsed Sanders in October, recently called Bloomberg, as he’s sought to move on from the issue, “just a billionaire trying to cover up authoritarian & racist policy.”
“Stop and Frisk was an unconstitutional, devastating practice for the entire city that intentionally exempted White people from harm.” Ocasio-Cortez tweeted this week. “It was one of the most racist policies I’ve ever lived through that deeply impacted the entire city.”
This story has been updated with additional comments from de Blasio and others.
CNN’s Dan Merica and Caroline Kenny contributed to this report.