American Crossroads, the 527 organization co-founded by Karl Rove, and Crossroads GPS, the 501c4 non-profit associated with it, are launching $4.6 million worth of ads in 6 states today.

American Crossroads is spending $2.6 million on ads that will air for two weeks in Nebraska, Nevada, and Virginia. Crossroads GPS is spending $2 million on ads that will air for two weeks in Missouri, North Dakota, and Ohio.

Except for the Nevada ad focusing exclusively on Rep. Shelley Berkley's, D-Nev., ethical problems, each ad ties the Democratic U.S. Senate candidate from the respective state to Obama's unpopular agenda. You can watch each ad below.

Missouri's  “Spending” ad targeting Sen. Claire McCaskill, D-Mo.:

North Dakota's "Change" ad targeting Heidi Heitkamp:

Ohio's "Cheap" ad targeting Sen. Sherrod Brown, D-Ohio:

Nebraska's "Consequences" ad targeting former-Gov. Bob Kerrey:

Nevada's "Arms" ad targeting Rep. Shelley Berkley, D-Nev.:

Virginia's "Behind" ad taregting former-DNC Chairman Tim Kaine: