Story highlights Ted Cruz and allies are unhappy with other candidates, the media and others they blame for Donald Trump's success

Cruz has thus far declined to endorse Trump

Washington (CNN) It was the Fox News commentators who wouldn't embrace him.

Or the John Kasichs, who wouldn't exit for him. Or the Marco Rubios, who wouldn't join him.

Ted Cruz, ousted from the presidential race a week ago after a devastating final loss to Donald Trump in Indiana, is now training his ire in this new chapter of his political career on the forces who he believes made Trump the nominee. And the culprits are everywhere, with Cruz and his aides struggling to move past the machinations and tactics that wronged him -- never mind to unify behind Trump and endorse him.

It is hardly unusual for wounds to be raw after a bruising presidential campaign, especially one in which Cruz's father and wife were personally attacked by Trump and his associates. Yet the bitterness from the presidential candidate himself and his allies in the first weeks after Cruz receded from day-to-day combat with Trump has been particularly public.

"Listen, there's time for recriminations, and everyone who is responsible for the rise of Donald Trump, they will bear that responsibility going forward," Cruz told Houston radio host Michael Berry this week. Berry wanted to know if Fox News -- whose executives Cruz criticized by name on the final day of his campaign -- was at fault.

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