Sandberg's last official testimony on Capitol Hill was in September 2018 alongside Twitter CEO Jack Dorsey. The executives appeared in front of the Senate Intelligence Committee to discuss election-related abuse after reports revealed coordinated misinformation campaigns on their platforms around the 2016 U.S. presidential election.
Facebook's plans to introduce a new cryptocurrency called libra has once again riled up lawmakers, who have already questioned the project's leader about how it would impact the value of the U.S. dollar and how consumers could trust Facebook with their money after a series of privacy scandals. Facebook would likely hope that testimony from Sandberg could ease fears and provide a strong signal to Congress that the company is taking the necessary precautions.
CNBC's source confirmed Bloomberg's report on the talks about Sandberg's possible testimony. A representative from Sandberg's team at Facebook declined to comment. The House Financial Services Committee did not immediately respond to a request for comment.
The testimony would follow another recent D.C. visit from a top executive at Facebook. CEO Mark Zuckerberg met last week with some of his top critics on the Hill to discuss national privacy regulation and other topics, according to lawmakers who participated in the meeting. The closed-door talks seemed to be an attempt to show influential leaders in Washington that Facebook is taking them seriously while the company faces what's now believed to be as many as four separate antitrust investigations, according to reports from multiple outlets.
Facebook has cautiously signaled it is planning to move forward with libra despite lawmakers' concerns. The project's lead, David Marcus, told a Swiss news outlet, "The goal is still to launch libra next year," Reuters reported last week.
When asked at a July testimony if Facebook would commit to refraining from moving forward with libra before appropriate regulations were implemented, Marcus said, "I committed to waiting for us to have all the appropriate regulatory approvals and have addressed all concerns before moving forward."
"That's not a commitment," said House Financial Services Committee Chairwoman Maxine Waters, D-Calif.
-CNBC's Ylan Mui contributed to this report.