Ocasio-Cortez and Omar - along with Michigan Rep. Rashida Tlaib and Massachusetts Rep. Ayanna Pressley - have attracted attention since they arrived in D.C., both for their progressive stances and their historic elections.
At Tuesday's debate, Sanders dismissed questions about his health, saying "we are going to be mounting a vigorous campaign all over this country". Alexandria Ocasio-Cortez (D-N.Y.), who is expected to formally endorse the senator for the Democratic nomination.
Another high-profile liberal congresswoman, Ilhan Omar of Minnesota, announced Tuesday that she too is endorsing Sanders.
"We're looking forward to Saturday", Ocasio-Cortez spokesperson Corbin Trent teased in a statement.
"I think AOC should be far less concerned with really campaigning for Bernie Sanders". It's also a blow to Warren, who was the No. 1 target for attacks by rivals in a debate Tuesday in Ohio. On Wednesday night, Sanders chief of staff Ari Rabin-Havt told CNN that Ocasio-Cortez and Omar, in backing Sanders, underscored the campaign's fundamental argument - that nothing short of a mass movement will be enough to unseat President Donald Trump and push through ambitious progressive policies.
The planned endorsement was first reported by The Washington Post, as the Democratic presidential candidates were wrapping up their appearances in the fourth debate of the primary season. "She will not back down from a fight with billionaires and the world's most powerful corporations to transform our country so it works for all of us".
In a speech last week about global climate change, Ocasio-Cortez's voice appeared to crack when she spoke about the future of any children she may have, stating that it's our responsibility to ensure a future for younger generations. Media representatives for the lawmakers did not immediately respond to requests for comment. He recently held a rally in Omar's district. That is why he is fighting to make all school meals universal.
All four members of the group were elected to the House in 2018.