The Obama campaign and its allies hold a nearly 2-to-1 ad-spending advantage this week over the Romney campaign and its supporters, $8.8 million to $4.7 million according to ad-spending data from NBC/SMG Delta.

But over the course of the early general election, Romney and GOP-leaning outside groups have outspent Obama and his supporters.

Here's ad-spending breakdown for this week:

Colorado: Obama $531K, Romney $90K, Crossroads GPS $169K, Priorities USA $179K
Obama/Pro-Obama $710K
Romney/Pro-Romney $259K

Florida: Obama $1.2M, Crossroads GPS $794K, Priorities USA $289, Planned Parenthood Action Fund $149K
Obama/Pro-Obama $1.638M
Romney/Pro-Romney $794K

Iowa: Obama $592K, Romney $103K, Crossroads GPS $185K, Planned Parenthood Action Fund $103K
Obama/Pro-Obama $695K
Romney/Pro-Romney $288K

Michigan: Crossroads GPS $223K
Obama/Pro-Obama $0
Romney/Pro-Romney $223K

Nevada: Obama $516K, Romney $30K, Crossroads GPS $172K
Obama/Pro-Obama $516K
Romney/Pro-Romney $202K

New Hampshire: Obama $482K, Romney $33K, Crossroads GPS $310K
Obama/Pro-Obama $482K
Romney/Pro-Romney $343K

New Mexico: Obama $18K
Obama/Pro-Obama $18K
Romney/Pro-Romney $0

North Carolina: Obama $1.1M, Romney $193K, Crossroads GPS $449K
Obama/Pro-Obama $1.1M
Romney/Pro-Romney $6.42M

Ohio: Obama $1.7M, Romney $277K, Crossroads GPS $514K, Priorities USA $166K
Obama/Pro-Obama $1.866M
Romney/Pro-Romney $791K

Pennsylvania: Obama $474K, Crossroads GPS $427K, Priorities USA $214K
Obama/Pro-Obama $688K
Romney/Pro-Romney $427K

Virginia: Obama $772K, Romney $128K, Crossroads GPS $615K, Priorities USA $145K, Planned Parenthood Action Fund $193K
Obama/Pro-Obama - $1.11M
Romney/Pro-Romney - $743K

Total:
Obama/Pro-Obama $8.823M
Romney/Pro-Romney $4.712M