A new round of CNN polls in five red states has some very good news for Barack Obama: He's leading in four out of the five, with a huge lead in Virginia.

• Nevada: Obama 51%, McCain 46%, with a ±3.5% margin of error. Three weeks ago, Obama was up 51%-47%.

• North Carolina: Obama 51%, McCain 47%, with a ±4% margin of error. Two weeks ago, it was a 49%-49% tie.

• Ohio: Obama 50%, McCain 46%, with a ±3.5% margin of error. Two weeks ago, Obama was ahead 50%-47%.

• Virginia: Obama 54%, McCain 44%, outside of the ±4% margin of error. This is basically unchanged from Obama's 53%-43% lead a week ago.

• West Virginia: McCain 53%, Obama 44%, outside of the ±4% margin of error. A month ago, McCain was only up 50%-46%, so this is the one sliver of good news for him in here.

All five of these states voted twice for George W. Bush, and the four where Obama is ahead add up to 53 electoral votes. John McCain pretty much needs to hold on to all 53 of them, or else it will be exceedingly difficult for him to pull off a victory.