A liberal veterans group is launching a television ad in North Dakota, criticizing GOP Rep. Kevin Cramer for comments about the military and for votes relating to pay raises for the military and Veterans Affairs funding.

VoteVets Action Fund is launching a $270,000 ad buy on both broadcast and cable networks throughout the state, starting Saturday and running through Aug. 3.

“Congressman Kevin Cramer has turned his back on our veterans and service members,” a narrator says in the ad, shared first with Roll Call.

The fact that VoteVets is spending in the race signals that Democrats believe they have a salient campaign message on veterans issues against Cramer, who is challenging Democratic Sen. Heidi Heitkamp.

The ad recounts comments Cramer made about military service, including a comment to Reuters in March in which he said continuing to vote to increase defense spending is “becoming a very difficult pill.”