Here are today's updated polls in our round-up of Senate races:

• Kentucky: McConnell 48, Lunsford 48. (SurveyUSA)
• New Jersey: Lautenberg 55, Zimmer 33. (Quinnipiac)
• North Carolina: Hagan 44, Dole 41, Cole 4. (Civitas)

To keep up with our race ratings, you can also go to our Senate Races to Watch page.

CQ Politics has made three changes in our race ratings of the presidential race:

• North Carolina moves from "Leans Republican" to "No Clear favorite."
• Nevada, New Hampshire, Ohio, Colorado and Virginia move from "No Clear Favorite" to "Leans Democratic."
• Michigan, Minnesota, Wisconsin, Iowa and Pennsylvania move from "Leans Democratic" to "Democrat Favored."

You can see how these changes play out by going to our CQ Politics Presidential election maps which give you four different ways to look at the race, including one that lets you build your own electoral scenario.

Here are the states we're updating today in our round-up of general election match-ups between John McCain and Barack Obama:

• Florida: Obama 50, McCain 47. (Rasmussen); Obama 52, McCain 44. (Strategic Vision)
• Michigan: Obama 56, McCain 40. (Rasmussen)
• New Jersey: Obama 50, McCain 42. (Rasmussen)
• North Carolina: Obama 49, McCain 48. (Rasmussen); Obama 48, McCain 43. (Civitas)
• Ohio: Obama 48, McCain 46. (Strategic Vision)
• Wisconsin: Obama 51, McCain 41. (Research 2000)

We've updated Ohio, Colorado, Michigan, Minnesota, Wisconsin, Arkansas, Massachusetts, Oregon, Pennsylvania, Vermont, North Carolina, Kansas, Kentucky, California and Florida in our round-up of state-by-state general election match-ups between Barack Obama and John McCain. We are also putting three states into different categories. Indiana and North Carolina move from "Republican Favored" to "Leans Republican." And Poll Tracker sheepishly admits it got out of synch with our race ratings team, and is moving Pennsylvania from "Democrat Favored" to "Leans Democratic."

Visit our Presidential election maps which give you four different ways to look at the race, including one that lets you build your own electoral scenario.

Our latest round-up of match-ups between Barack Obama and John McCain updates Colorado, Michigan, North Carolina, Ohio, Maine, Georgia, Mississippi Alabama, Idaho and Wyoming. Also, check out CQ Politics' election forecasts for detailed stories on races in each state from the tops of the tickets down. Also go to our Presidential Election Maps to see our calls and use our Scenario Builder to make your own.

• Colorado: Obama leads McCain 49 percent to 46 percent with 1 percent choosing "other" and 4 percent undecided in an InsiderAdvantage poll conducted Sept. 10. The margin of error is 4.3 percent. A Public Policy Polling survey conducted Sept. 7-9 gave Obama a statistically insignificant edge over McCain of 47 percent to 46 percent with 7 percent. The margin of error was 3 points. McCain increased his lead among white voters from 2 to 6 points since PPP's last poll, but Obama has been able to offset that with his 58 percent to 34 percent lead among Hispanics who make up 14 percent of the sample. A Fox News/Rasmussen Reports survey conducted Sept. 7 had Obama ahead McCain 49 percent to 46 percent with 2 percent choosing Libertarian candidate Bob Barr and 2 percent. The margin of error was 4.5 percent. Obama's favorable-to-unfavorable numbers were 54 percent to 45 percent and McCain's were 61 percent to 39 percent. Voters trusted McCain more than Obama 49 percent to 44 percent. A Time/CNN/Opinion Research poll conducted Aug. 24-26. had McCain ahead 47 percent to 46 percent with 7 percent choosing neither, "other" or having no opinion. The margin of error was 4 percent. A Suffolk University poll conducted Aug. 21-24 had Obama ahead 44 percent to 39 percent with Ralph Nader and Libertarian Bob Barr drawing 2 percent each and 12 percent undecided. The margin of error was 4.6 percent. Suffolk's David Paleologos said, "Should Obama go on to win Colorado, it would almost force McCain to run the table with the remaining battleground states or lose the election." Other recent polls were tighter. McCain was in a statistical tie with Obama, leading him 47 percent to 46 percent with 5 percent undecided in a Quinnipiac University survey, but the Obama camp thinks they can make it competitive. CQ Politics' Election Forecast puts Colorado in the "No Clear Favorite" column.

Today we update North Carolina, Pennsylvania, Florida, Iowa, Indiana and Minnesota in our round-up of state match-ups between Barack Obama and John McCain. The news tends to be better for McCain with him gaining some ground in North Carolina, and while Obama is ahead in Pennsylvania, his support in both states hasn't changed much. McCain also pulled out ahead in Indiana and Florida, although by a statistically insignificant margin. Also, check out CQ Politics' election forecasts for detailed stories on races in each state from the tops of the tickets down.

• North Carolina: While Obama is still in hailing distance in a state that the Republicans have carried in the last five elections, another poll this month is noting movement towards McCain. McCain leads 46 percent to 40 percent with 2 percent for Libertarian Bob Barr and 12 percent undecided in a Civitas Institute poll conducted Aug .14-17. The margin of error is 4.2 percent. That's a 3 point gain for McCain since July in this poll. Helping McCain is growing strength among independents which is now 18 points. At one point, he had been about even with Obama among them. The pollster says Obama seems stuck at about 40 percent even though he "continues to invest millions of dollars in television, field operations and commit his personal time." A Rasmussen Reports poll conducted Aug. 13 also found McCain picking up a little ground. McCain led Obama 46 percent to 42 percent with 4 percent choosing "other" and 8 percent undecided. The margin of error was 4.5 percent. But McCain's lead widens to 6 points when voters leaning one way or the other are included. In the last Rasmussen survey in mid-July, McCain led by 3. McCain's favorable-to-unfavorable ratio was 59 percent to 40 percent while Obama's is 51 percent to 48 percent. McCain had stronger support than Obama with his own base, drawing the backing of 87 percent of Republicans compared to Obama's 74 percent of Democrats. McCain had better than a 2-to-1 margin among white voters. A SurveyUSA poll conducted Aug. 9-11 gave McCain a 49 percent to 45 percent lead that's just a hair beyond the 3.9 percent margin of error. Three percent preferred "other" and 3 percent were undecided. McCain led by 9 among men voters and the two men were statistically even among women. McCain led among voters over 34, with the most pronounced advantage being a 13 point edge among voters over 65 (18 percent of the sample). McCain led 60 percent to 33 percent among white voters (75 percent of the sample) while Obama led 91 percent to 9 percent among blacks (19 percent of the sample). The economy is cited by voters as the top issue and Obama and McCain run evenly among them. CQ Politics' Election Forecast lists this state as "Republican Favored."

Here's our updated round-up of polls on Senate races around the country. And there's an answer to a trivia question in here: Who was the last Democrat to hold a Senate seat in Kansas?

• Georgia: First term Republican Saxby Chambliss holds big leads over any of the five Democrats seeking to challenge him, according to a Rasmussen Reports poll conducted June 26. He leads Dale Cardwell, a former investigative reporter, by 53 percent to 33 percent; DeKalb County chief executive officer Vernon Jones by 57 percent to 30 percent and Atlanta attorney, former legislator Jim Martin by 52 percent to 39 percent, retired businessman Josh Lanier by 54 percent to 31 percent and businessman Rand Knight by 55 percent to 31 percent. CQ Politics rates this race Republican Favored.