"The Campaign" made me think of "Mr. Smith Goes to Washington" if it had been written by the Onion staff. It involves a Congressional election in North Carolina in which both campaigns are reduced to gaffes and dirty tricks, until the tide is turned at the last moment by an uncontrolled outburst of honesty. Will Ferrell stars as Cam Brady, the four-term incumbent who runs basically because he likes being a congressman. Zach Galifianakis is Marty Huggins, the doofus who runs the local tourism board and is backed by billionaire brothers who want to "insource" cheap labor by buying the district and then selling it at a profit to China.
The movie is technically nonpartisan, although there is no mistaking the billionaire Motch brothers (John Lithgow and Dan Aykroyd). They're clearly intended to be the Koch brothers, architects of changes in our laws about political contributions that allow corporations to pour fortunes into campaigns.
The Motches have no particular ideology except that it is a good thing for them to get richer. Candidates Brady and Huggins stand for the Flag, our men in uniform and Jesus — although in a debate, when Huggins challenges Brady to recite the Lord's Prayer, he has to improvise.
The movie uses their campaign as a showcase of political scandals that have become familiar in both parties, missing only one: Neither candidate is caught adopting a wider stance in an airport restroom. Brady tops that, however, by seducing Higgins' tubby wife, Mitzi (Sarah Baker), filming it with his phone and then posting their rumpy-pumpy as a video that goes viral. This is not so much a campaign strategy as an outburst of savage rage, but it does give him a two-point bump in the polls.