President Frank Underwood (Kevin Spacey) has already gone head-to-head with countless people in the five seasons of “House of Cards” in order to claim the top seat in the United States.

In Season 5, he faced another formidable opponent in Congressman Alex Romero (James Martinez), a member of the Declaration of War Committee.

READ: Will Frank Underwood kill his wife Claire?

What makes Romero so daunting for Frank is that they have so many similarities. That, and the fact that the Latino politician is not afraid to expose Frank’s skeletons in the closet. “When I was first cast, Alex was described to me as a potential young Francis Underwood. As we know he started out in Congress, just like my character,” Martinez told Parade about his character.

“To me, Alex represents that ambitious young demographic that doesn’t know where they stand, whether to lean on the left or right or which party they belong to. So they go it alone,” he added. “I have many friends who say they’re tired of deciding what side they’re on and that they’re going to take matters into their own hands. It’s very bold.”

Martinez would love for his character to return next season, and he even believes Romero can take Frank down a peg or two. “We don’t even know if there’s going to be a sixth season but based on conversations on set, if and when a season six happens, it’s likely Alex will come back. He’s got a lot to say,” he said.

Should Romero go after Frank anew, he would also have to deal with his wife, Claire (Robin Wright). The Underwoods have maintained a solid partnership throughout the show, but Claire is now embracing more power and leadership.

In fact, Wright hinted that the Underwood couple might end up destroying each other in the future. “They are both capable of anything and that’s what’s so great about the mystery of it. They are both capable of anything! As producers on the show, Kevin and I play with that,” Wright told The Hollywood Reporter. “We just don’t want to give the audience what they expect. That is the trickery that we have to play with all of the time.”