A crowd estimated by police to number 100,000 came out to an Obama rally in St. Louis, MO today. Standing before the crowd, Obama said, "What a magnificent sight. All I can say is, wow!" The sea of supporters collected under the St. Louis Gateway Arch the nation's tallest monument. The rally doesn't rival his largest, 200,000 in Berlin, but beats the 84,000 who heard him give his acceptance speech at the convention in August.