Chambers is a major donor and member of the Berkshire Communists, which describes itself as a “revolutionary Marxist-Leninist collective, aiming to promote the formation of a powerful workers’ party.” Chambers is the heir to a family fortune which he uses to fund the communist agenda. After the Hamas terrorist attack against Israeli civilians on October 7, 2023, Chambers called for “making people who support Israel actually afraid to go out in public.”