This assertion puzzles me.
Is it correct that McCain admitted publically that his captor's torture and treatment broke him?
He spent 2008 kowtowing to that shuck'n'jive every chance he could, does that answer your question?
Of course they broke his ass.
McCain's fake primary 'comeback' in 2008 was Part B of the Part A, which was "Hey we have the perfect Manchu candidate" in Bobo, and Cankles be literally damned.
When Cankles said on Election Night, "I knew they wouldn't let me win.", she wasn't talking about deplorables. Not. Even. Close.