Weaver (born 1966) was the campaign manager for the 2016 campaign of US Senator Bernie Sanders for President of the United States.
He formerly served as the campaign manager for Sanders's 2006 United States Senate election and as chief of staff in Sanders’s House and Senate offices.
In August 2016, Weaver was named president of Our Revolution, a political organization created by Sanders, a position he held until June 2017.
In May 2018, his book How Bernie Won: Inside the Revolution That's Taking Back Our Country was published.