In an election for President of the United States in battleground Missouri today, 10/13/08, three weeks until votes are counted, Democrat Barack Obama has momentum and a meaningful advantage in SurveyUSA's latest tracking poll, conducted for KMOX radio in St Louis and KCTV-TV in Kansas City. The contest in Missouri has swung 10-points to Obama since SurveyUSA's last track point, 3 weeks ago. Then, McCain led by 2. Today, Obama leads, 51% to 43%. Among white voters, McCain had led by 11. Today, tied. There is movement among men, where McCain had led, now trails; among women, where McCain had been tied, now trails; among higher-income voters, where McCain had led, now trails; and among Independents, where McCain had led, now trails. In greater St. Louis, Obama had led by 5, now by 22. In greater Kansas City, Obama had led by 16, now by 31. George W. Bush carried Missouri by 7 points in 2004, and by 3.5 points in 2000. The state has 11 electoral votes, which are critical to any Republican who seeks the White House.