James David "Jim" Margolis is an American political consultant and communications executive based in Washington, D.C. He served as a Senior Advisor to Barack Obama in both his 2008 and 2012 campaigns for the White House, taking a lead role in each cycle’s half-billion dollar advertising effort and helping direct the campaign as a member of the core strategic team. He also served as co-producer of Mr. Obama’s two presidential inaugurals and Mr. Obama’s two national nominating conventions. Margolis is a senior partner at GMMB, Inc., a strategic communications firm and advertising agency known for its work with political leaders, nonprofits and corporations. Previously he served as chief of staff to US Senator Kent Conrad, chief of staff to US Congressman Howard Wolpe, and Deputy Director of Communications for Vice President Walter Mondale’s presidential campaign.