When you come from a big family, your siblings sometimes join forces to poke fun at you. 

And if you're a United States senator, sometimes they do it in a campaign ad. 

Heidi Heitkamp is up with her first campaign ad of 2018 in a spot that features her siblings good-naturedly ribbing about her unusual methods of completing her designated chore as a kid (laundry) as well as her being "so good, it was almost annoying." 

Here's the ad, which is running statewide and online.