“A fixed stare at this thing that might be the end of everything. Tucker Carlson, dressed in a gingham shirt against the rustic background of his Maine cabin, smiled slightly as he shared his characteristically apocalyptic view of Donald Trump’s America. Carlson has been teasing a need for a new political movement while throwing some lukewarm water on his own long-rumored presidential run. (Not that such promises are ironclad: In May, Carlson said he would “absolutely not” build a third party.) Greene said on social media that their movement to unwind Trump’s foreign entanglements had begun, and Carlson soon announced that he would expand on their efforts in video remarks.