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Elizabeth Warren visits Hillary Clinton’s Brooklyn headquarters

Sen. Elizabeth Warren (D-Mass.) visits the residence of Democratic presidential candidate Hillary Clinton in Washington on June 10. (Alex Wong/Getty Images)

Sen. Elizabeth Warren made a visit to Hillary Clinton's Brooklyn headquarters on Friday, a stop that is bound to stoke further vice presidential speculation.

Warren greeted staffers, took photos and delivered a pep talk to mark the start of the general election, according to several people present at the visit.

According to one attendee, Warren thanked them for their hard work and urged them to keep it up through the general election.

"Don't screw this up," Warren told them, according to one attendee who posted about the visit on social media before deleting it.

She also talked to staff about the importance of the election, including when it comes to issues like filling vacancies on the U.S. Supreme Court and preserving Democratic priorities like the Affordable Care Act and the Dodd-Frank Wall Street Reform and Consumer Protection Act.

A Hillary Clinton-Elizabeth Warren pairing would be profoundly unusual — and not just in national politics

The Massachusetts Democrat endorsed Clinton a week ago after remaining neutral during the Democratic primary. Warren's sway among progressives and her willingness to take on likely Republican nominee Donald Trump made her endorsement a coveted one.

Sen. Elizabeth Warren (D-Mass.) endorsed Hillary Clinton for president on June 9, but the two haven't always seen eye-to-eye. (Video: Peter Stevenson/The Washington Post)

But Clinton has also been asked whether she would consider Warren as a vice presidential candidate, a prospect that appears to be under serious consideration. The two met at Clinton's Washington home last Friday, a day after Warren endorsed the former secretary of state.

In a recent interview, Clinton was notably complimentary of Warren.

"I have the highest regard for Sen. Warren," she said in an interview with Politico last week. "I think she is an incredible public servant, eminently qualified for any role. I look forward to working with her on behalf of not only the campaign and her very effective critique of Trump, but also on the issues that she and I both care about."

Other visitors who have stopped by Clinton's Brooklyn headquarters in recent months: New York Sen. Chuck Schumer, singer Jon Bon Jovi, Housing and Urban Development Secretary Julian Castro, former Rep. Gabby Giffords and Former Texas state Sen. Wendy Davis.

Dan Balz contributed to this report.