Obama's most important lead after last night's debate may have come among Hispanic voters, who favored him by a 50-36 percent margin according to the national Politico/InsiderAdvantage survey of undecided debate-watchers. The candidates were evenly matched among white voters, with McCain holding a 49-46 percent advantage - equal to the three point margin of error. African Americans picked Obama as the winner by 88-10 percent. You can trace Hispanics' support of the presidential candidates through Gallup's weekly poll - the poll shows Obama with a consistent comfortable margin of at least 20-25 points ahead of McCain. The latest Gallup poll shows Obama ahead by a 60-31 percent advantage.