Here are updates that include polls published Friday through today in our round-up of match-ups between John McCain and Barack Obama:

• Alaska: McCain 58, Obama 39. (Research 2000)
• Arkansas: McCain 51, Obama 44. (ARG)
• Colorado: Obama 49, McCain 44. (NBC News/Mason-Dixon); Obama 54, McCain 44. (Public Policy Polling)
• Florida: Obama 47, McCain 45. (Mason-Dixon); Obama 50, McCain 46. (ARG)
• Georgia: McCain 47, Obama 44. (Research 2000); McCain 52, Obama 47. (Rasmussen)
• Illinois: Obama 60, McCain 38. (Rasmussen)
• Indiana: McCain 48, Obama 48. (ARG); McCain 47, Obama 47. (SurveyUSA)
• Iowa: Obama 54, McCain 37. (Des Moines Register); Obama 55, McCain 40. (SurveyUSA)
• Kentucky: McCain 56, Obama 39. (Research 2000)
• Michigan: Obama 55, McCain 42. (Public Policy Polling); Obama 50, McCain 38. (EPIC -MRA)
• Minnesota: Obama 53, McCain 38. (Research 2000); Obama 57, McCain 41. (Public Policy Polling)
• Missouri: McCain 47, Obama 46. (NBC News/Mason-Dixon); McCain 50, Obama 47. (InsiderAdvantage/Politico)
• Montana: McCain 48, Obama 44. (Research 2000)
• Nevada: Obama 47, McCain 43. (NBC News/Mason-Dixon)
• New Hampshire: Obama 52, McCain 41. (WMUR/UNH); Obama 53, McCain 42. (SurveyUSA); Obama 50, McCain 41. (Strategic Vision); Obama 51, McCain 44. (Research 2000); Obama 51, McCain 44. (Rasmussen)
• New Mexico: Obama 58, McCain 41. (Public Policy Polling)
• North Carolina: McCain 49, Obama 46. (NBC News/Mason-Dixon); Obama 48, McCain 48. (InsiderAdvantage/Politico); Obama 45, McCain 38. (Elon University)
• Ohio: McCain 47, Obama 45. (NBC News/Mason-Dixon)
• Oregon : Obama 54, McCain 42. (Rasmussen); Obama 55, McCain 39. (Research 2000). Obama 57, McCain 42. (Public Policy Polling)
• Pennsylvania: Obama 52, McCain 44. (Muhlenberg); Obama 51, McCain 45. (ARG); Obama 51, McCain 47. (Rasmussen)
• South Carolina: McCain 52, Obama 44. (SurveyUSA)
• South Dakota: McCain 53, Obama 44. (Rasmussen)
• West Virginia: McCain 55, Obama 42. (Public Policy Polling)
• Wisconsin: Obama 55, McCain 39. (SurveyUSA).
• Wyoming: McCain 61, Obama 36. (Research 2000)

Also, check out 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 today's updates in our match-ups between John McCain and Barack Obama:

• Arizona: McCain 53, Obama 46. (CNN/Time); McCain 48, Obama 44. (NBC News/Mason-Dixon).
• California: Obama 55, McCain 33. (Field)
• Colorado: Obama 51, McCain 45. (Marist); Obama 48, McCain 44. (Allstate/National Journal)
• Florida: Obama 45, McCain 44. (Allstate/National Journal)
• Indiana: McCain 49, Obama 46. (Rasmussen); Obama 45.9, McCain 45.3 (Indianapolis Star-WTHR)
• Kentucky: McCain 55, Obama 43. (Rasmussen)
• Minnesota: Obama 56, McCain 37. (MPR/Humphrey); Obama Obama 48, McCain 40. (NBC News/Mason-Dixon)
• Montana: McCain 50, Obama 46. (Rasmussen)
• New Hampshire: Obama 53, McCain 40. (Suffolk University)
• New Jersey: Obama 54, McCain 38. (Research 2000)
• New Mexico: Obama 54, McCain 44. (Rasmussen)
• Nevada: Obama 52, McCain 45. (CNN/Time)
• North Carolina: Obama 50, McCain 48. (Rasmussen) Obama 52, McCain 46. (CNN/Time); Obama 47, McCain 43. (Allstate/National Journal)
• Ohio: Obama 51, McCain 47. (CNN/Time); Obama 48, McCain 41. (Allstate/National Journal)
• Pennsylvania: Obama 55, McCain 43. (CNN/Time); Obama 47, McCain 43. (NBC News/Mason-Dixon)
• South Carolina: McCain 53, Obama 42. (NBC/Princeton).
• Texas: McCain 49.3, Obama 38. (University of Texas)
• Virginia: Obama 51, McCain 47. (Marist); Obama 48, McCain 44. (Allstate/National Journal)

Also, check out 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.

Today we update North Carolina, Colorado, Alabama, Maryland, New York, Pennsylvania, Maine, Oregon, Delaware, Michigan, Massachusetts, West Virginia, Arkansas and New Hampshire in our round-up of state-by-state general election match-ups between Barack Obama and John McCain. CQ Politics is changing its rating on Virginia from "Leans Republican" to "No Clear Favorite."

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.

Here's a summary of our race ratings categories. Use this link for background on how we arrive at them

• No Clear Favorite, for races that are deemed to close to call.
• Leans Democratic and Leans Republican, for highly competitive races in which the named party is perceived to have at least a slight edge, but in which an upset is a highly plausible possibility.
• Democrat Favored and Republican Favored, for races in which the named party has a clearer advantage and is likely to win, though an upset cannot be completely ruled out.
• Safe Democratic and Safe Republican, for races in which the named party is viewed as certain to win.

Our latest round-up of match-ups between Barack Obama and John McCain updates Florida, Colorado, New Mexico, Michigan, Minnesota, Indiana, New Hampshire, Virginia, Pennsylvania, Wisconsin, South Carolina, Illinois, New Hampshire, Georgia, New Jersey, Connecticut and Ohio. One series of polls that stood out was a new "Big Ten Battleground Poll" co-directed by University of Wisconsin-Madison political scientists. Of six states they surveyed, McCain and Obama were exactly tied or statistically tied in five: Minnesota, Wisconsin, Ohio, Iowa and Pennsylvania with only Obama's home state of Illinois being non-competitive. Some of these were also among the 33 updates we posted yesterday. 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.