A consistent supporter of the Democratic Party, Sorkin has made substantial political campaign contributions to candidates between 1999 and 2011, according to CampaignMoney.com. During the 2004 US presidential election campaign, the liberal advocacy group MoveOn's political action committee enlisted Sorkin and Rob Reiner to create one of their anti-Bush campaign advertisements. In August 2008, Sorkin was involved in a Generation Obama event at the Fine Arts Theater in Beverly Hills, California, participating in a panel discussion subsequent to a screening of Frank Capra's "Mr. Smith Goes to Washington". However, Sorkin does not consider himself a political activist: "I've met political activists, and they're for real. I've never marched anyplace or done anything that takes more effort than writing a check in terms of activism". In 2016, after President Donald Trump won the election, Sorkin wrote an open letter to his daughter Roxy and her mother Julia.