The North Dakota Republican Party sent out a tweet intended to promote Rep. Rick Berg's (R-N.D.) Senate campaign with a website promising he'll "show Washington the 'North Dakota way.' "

The only problem? That website is run by his opponent, former North Dakota Attorney General Heidi Heitkamp (D), and satirizes his campaign slogan with a series of attacks on Berg for having "gone Washington."

An hour later, the tweet was deleted and replaced with one linking to Berg's campaign website. See the original below.

Berg and Heitkamp are locked in a tight race in the heavily Republican state.