The St. Louis Speaker Series held its 20th annual kick-off celebration at The Ritz-Carlton, St. Louis. This year's speakers are David Cameron, former Prime Minister of the United Kingdom; Jeffrey Toobin, Supreme Court expert and esteemed legal analyst; Jane Pauley, television journalist and author; Robin Wright, Middle East expert, award-winning journalist and author; Rick Steves, author, television host and European travel guide; President Bill Clinton, 42nd president of the United States; and Paul Nicklen, award-winning National Geographic photographer. For more information, visit