The newest trailer for "House of Cards" season 4 confirms that the season will not just see Frank (Kevin Spacey) and Claire Underwood (Robin Wright) separated but they will be at constant war against each other. 

The couple has worked together through the first three seasons to continually raise their political influence and power, eventually leading to Frank becoming President of the United States without the need of an election. That all fell apart during the finale of season 3 and this trailer confirms that their dispute will play out all through season 4.

One aspect where Claire has an advantage over all of Frank's adversaries is that she knows all of his secrets, potentially making her the biggest threat Frank has yet to face both personally and politically. This becomes even more serious considering she knows he has committed murder and other serious crimes to secure his current position.

Conflict between Frank and Claire isn't the only focus of the new trailer. As stated in a report from Screen Rant, there are a few short snippets of newcomers Joel Kinnaman and Neve Campbell. The former appears to be a selfie-taking rival Frank will face in the elections while Campbell seems to be working for or with Claire.

Viktor Petrov (Lars Mikkelsen) also makes a comeback in this season and so does Remy Danton (Mahershala Ali). Doug Stamper (Michael Kelly) also appears to be in better shape considering the damage done to him through season 3.

It is undetermined if Claire and Frank's civil war will continue throughout season 4 or if it will end when the two are confronted by a new "power couple" that arrives to challenge their rule of power. There have been rumors that Frank and Claire may move on from their quarrel in order to take down the new outside threat.

"House of Cards" season 4 premieres this March 4.