The REAL Reason Rep. Ken Buck Is Resigning?

Low-T GOP Congressman-in-Chief Ken Buck decided to pack up his office next week; what does Sean Spicer think about this whole thing? Buck's excuse is that he wants to be 'more involved in the election cycle mix', but does that make any sense for him to leave Congress? A freedom caucus member that turned rogue just a few months ago, what could be the explanation for Ken Buck's resignation?