Democratic presidential candidate Barack Obama says he is offering fundamental change from what he calls "reckless" Republican economic policies that have hammered middle-class families. The Illinois senator says his rival John McCain plans to stay on the economic course charted by President George W. Bush. Obama was speaking to thousands jammed into a high school gymnasium in Springfield, Missouri, the first stop on a bus tour devoted to discussing economic security. Obama says he is offering voters the chance in the November election to reclaim the idea that opportunity in the United States is open to anyone who is willing to work for it. He says McCain thinks the country is on the right track even though economic anxieties grow daily.