It's the one time all warring brothers are forced to play nice: when mum asks you to stop fighting.
And that's exactly what happened on this hilarious clip, which featured Brad and Dallas Woodhouse on C-SPAN's Washington Journal. Brad is a liberal, Democrat, while Dallas is a confirmed conservative - a Republican. They were promoting a new documentary, Woodhouse Divided, and arguing about politics when their mother called in to the show.
Both were very quickly reduced to embarrassed little boys and let Joy Woodhouse have her say on the Affordable Care act and more.
Dallas has described the documentary as, "the story of all families and and the kinds of stories they have around their thanksgiving tables and the conversations they'll have with their extended families round the Christmas table" - we certainly got a glimpse of their better behaviour when they're around their mother.