Sandberg: Things happened on our platform that shouldn't have happened

Facebook Chief Operating Officer Sheryl Sandberg told Axios' Mike Allen Thursday that "things happened on our platform that shouldn't have happened" in the lead up to the 2016 presidential election.

"We know we have a responsibility to prevent everything we can from this happening on our platforms... and so we told Congress and the Intelligence committees that when they are ready to release the ads, we are ready to help them."