The Friends of Bernie Sanders made the payments to the Sanders Institute in two installments of $100,000 in January and March, according to disclosures with the Federal Election Commission.
The senator’s wife, Jane O’Meara Sanders, and stepson, David Driscoll, co-established the think tank and unveiled it publicly in 2017 after Sanders’ insurgent 2016 presidential campaign catapulted him to stardom among progressives.
edit: quote changed
Thanks for pointing it out, I have updated it.