Just hours before polls close in Democrat presidential primaries across the country Tuesday evening, former staffers for the Elizabeth Warren campaign endorsed socialist Bernie Sanders over former Vice President Joe Biden.

"We, the undersigned former employees and fellows of Warren for President, are ready to get back in the fight for a just and progressive future. We know that we need a bold, ambitious policy agenda for working families, marginalized communities, and our planet. We know that we won’t beat Donald Trump by simply talking about a return to business as usual. We hold these values close to our hearts because we’ve spent months talking about them with community members and volunteers in the field on behalf of Elizabeth Warren," former staffers wrote at Medium. "That’s why the best option for Warren Democrats right now is to support Bernie Sanders for President, in addition to fighting for Democratic victories across the board in Senate, House, and local races."

The staffers also explained Warren supporters are still "processing feelings" and said they are proud to have worked for the Massachusetts Senator in her fight against President Trump.

"We, former members of the Warren for President Team, are proud to have worked for a candidate who fights tirelessly for a country that works for all of us. Elizabeth ran a campaign on intersectional policy issues like Medicare for All, a Wealth Tax, a Green New Deal, cancelling student loan debt, providing universal free college, expanding Social Security, legalizing marijuana at the federal level and erasing convictions, and raising the minimum wage to $15 an hour. Now that Elizabeth has told us that her campaign is concluded, we know that she is considering how to best continue the fight for big, structural change. We respect that process and trust that she, as she always does, will do what is best to advance this movement," they said. "We also understand and respect that many Warren supporters are still processing their feelings as well. We urge them to take care of themselves first and we stand ready to welcome them back into the fight when they are ready."

Warren herself has not endorsed Sanders. In 2016, she endorsed Hillary Clinton instead of Sanders during the Democrat primary.