“I know there’s a lot of discussion about the validity of the president just unilaterally changing the law. … There are a lot of us that are very concerned about it,” Rep. Jason Chaffetz (R-Utah) said in an interview with The Hill.

Rep. Trent Franks (R-Ariz.), the chairman of the House Judiciary subcommittee on the Constitution and Civil Justice, said, “We’re exploring options to try to somehow try to rein in this president’s total disregard for the Constitution.”

Vulnerable West Virginia Rep. Nick Rahall (D) explained that “the main reason” he supported the Upton bill was because he wasn’t sure Obama “had the legal underpinning to do what he did.”

Still, the House GOP strategy has not yet been ironed out, though legal action has been discussed.

Asked if Republicans are mulling filing a lawsuit to challenge Obama’s use of executive powers, Franks said that “there’s no question we should do that … yes … and that’s something that we talked about a lot.”