The most prominent of the Tight-Lipped, oddly, is Arizona's John McCain, who is never tight-lipped.
John Mccain is being tight lipped, he has something to hide. 
mnli hypothesis: John Mccain is being tight lipped, he has something to hide.  premise: The most prominent of the Tight-Lipped, oddly, is Arizona's John McCain, who is never tight-lipped.