Sen. Bernie Sanders
Bernie SandersSanders endorses more than 150 down-ballot Democrats Postal service crisis — California is ready to pilot a postal banking solution Daily Beast reporter: Progressives feel alienated after Biden's socialism jab MORE (I-Vt.) has thus far not encouraged former Vice President Joe Biden
Joe BidenFederal judge shoots down Texas proclamation allowing one ballot drop-off location per county Sanders endorses more than 150 down-ballot Democrats Debate commission cancels Oct. 15 Trump-Biden debate MORE's team to consider Sen. Elizabeth Warren
Elizabeth WarrenLong-shot Espy campaign sees national boost in weeks before election Dems to focus on issues, not character, at Barrett hearings Congress fiddles while the US burns, floods, and ails MORE (D-Mass.) as his running mate despite his longstanding ideological alliance with the Massachusetts senator.
Three people familiar with Sanders’s conversations with Biden, whom the Vermont lawmaker has endorsed, told The Washington Post that Sanders has declined to back some liberals’ efforts to convince the former vice president to select Warren as his No. 2.
A top spokesperson for the Sanders campaign told The Hill that the senator "and his team are not advising the Biden campaign's vice presidential selection process in any way, shape or form."
"The senator is focused on building policy task forces to write a party platform that puts forward a new vision for America," spokesman Mike Casca said.
Sanders's Senate office did not immediately respond to a request for comment from The Hill.
Warren has frequently been mentioned in speculation about Biden’s running mate, with liberals saying she could serve as an effective concession to progressives who were disappointed that Sanders was unable to win the Democratic 2020 nomination.
While the two senators are natural ideological allies, they briefly clashed during the primary race over reports that Sanders told Warren that a woman could not be elected president, culminating in a viral moment after a debate in which Warren confronted Sanders over the disagreement.
Biden has already committed to tapping a woman as his running mate, narrowing the field of potential contenders and sparking an unusually public effort by some to join his ticket.
Warren said in April that she would accept an offer from Biden to be his running mate, while Sen. Kamala Harris
Kamala HarrisThe Memo: Trump searches for path to comeback Newt Gingrich urged Trump to 'study' Pence's debating style: 'He wasn't hostile' Trump calls into Rush Limbaugh's show for two hours MORE (D-Calif.) has also expressed openness to the possibility, and former Georgia gubernatorial candidate Stacey Abrams has openly touted the benefits she says she would bring to the Democratic ticket.
Updated: 10:15 p.m.