Dan Pfeiffer is an American political strategist and communications expert, best known for his role as the Senior Advisor to President Barack Obama. He served in this capacity during both of Obama's terms, focusing on communications and strategy, and played a key role in shaping the administration's messaging. After leaving the White House, Pfeiffer became a prominent commentator on political issues and co-hosted the popular podcast Pod Save America. He is also an author, having written the book "Yes We Still Can: Politics in the Age of Obama, Twitter, and Trump," which reflects on his experiences in politics and media.