(El Dorado, Kansas, is the birthplace of Barack's maternal grandfather, Stanley Dunham.)
Sen. Barack Obama, D-Ill., speaks at a rally at Butler County Community College in El Dorado, Kan., Tuesday, Jan. 29, 2008. (AP Photo/Orlin Wagner)
Kansas Gov. Kathleen Sebelius, and Sen. Barack Obama, D-Ill., greet one another during a rally at Butler County Community College in El Dorado, Kan., Tuesday, Jan. 29, 2008. Gov. Sebelius endorsed Obama during the event. (AP Photo/Orlin Wagner)
Sen. Barack Obama, D-Ill., speaks at a rally at Butler County Community College in El Dorado, Kan., Tuesday, Jan. 29, 2008. (AP Photo/Orlin Wagner)
A mother and daughter smile behind a man wearing a Barack Obama t-shirt during a rally in El Dorado, Kansas, January 29, 2008. El Dorado was the birthplace of Obama's maternal grandfather, Stanley Dunham. REUTERS/Jason Reed
Democratic presidential hopeful, Sen. Barack Obama, D-Ill., smiles during a rally on the campus of Butler Community College in El Dorado, Kan., Tuesday, Jan. 29, 2008. (AP Photo/Charles Rex Arbogast)
Democratic presidential hopeful, Sen. Barack Obama, D-Ill., speaks on the campus of Butler Community College in El Dorado, Kan., Tuesday, Jan. 29, 2008. (AP Photo/Charles Rex Arbogast)