The actress spoke with ET's Courtney Tezeno at the premiere of her new film, Chappaquiddick, in Los Angeles on Wednesday, and opened up about Wright taking over the lead role on the show following Kevin Spacey's termination.
"I love Robin! She has always been one of my favorite actresses of all time so I think she's been sort of gearing up to take over for a long time," Mara, 35, shared. "Her character, and also Robin in real life, is just such an incredible force. So I'm excited to see it!"
Over the course of five seasons, Frank gets elected to the oval office, and through his machinations, he gets re-elected with Claire as his Vice President. As the fifth season of the political drama came to an end, Frank resigned in disgrace after a series of scandals, leaving Claire as the first female President of the United States.
"I think the fact that everybody is so aware of it and it's definitely in our conversations today, [so] I think that's a good sign for sure," she explained.
As for Mara's latest film, Chappaquiddick, she once again plays a tragically ill-fated woman at the heart of a political conspiracy.
The film tells the real-life 1969 traffic accident involving U.S. Senator Ted Kennedy and a 28-year-old woman, Mary Jo Kopechne, who was the passenger in his car when he inadvertently drove off the side of a bridge. Kopechne drowned in the car while Kennedy managed to swim to safety and ended up fleeing from the scene without reporting the incident to police for several hours.
In the film, which recounts the high-profile investigation into the death and the subsequent scandal, Mara stars as Kopechne, and the actress told ET why she felt like she wanted to tell the young woman's often forgotten tale.
"I think it's important to tell these kinds of stories for a lot of the younger people that don't know anything about this time period and this specific incident," Mara said. "I think it's important to share and help educate everybody."