In the 2-minute 20-second preview, Will Ferrell and Zach Galifianakis's congress hopefuls Cam Brady and Marty Huggins hear buried family secrets while they're sat around the dinner table.
The Campaign, directed by Austin Powers helmer Jay Roach, centres on two rival politicians who go head-to-head in an election to represent their North Carolina congressional district in the United States House of Representatives.
Dylan McDermott, Jason Sudeikis, Brian Cox, John Lithgow and Dan Aykroyd feature among the supporting cast for The Campaign.
The comedy opens in the US on August 10 and in UK cinemas on September 28.
Submit your Twitter questions for Will Ferrell and Zach Galifianakis to @dsatthemovies account with the hashtag #CampaignQnA.
Digital Spy will pose the best questions to Will and Zach later this week.