From The Daily Caller:

Carl Mueller told NBC in an interview that aired Monday that he and his wife thought they could win his daughter’s freedom with a $6.2 million ransom payment, although he acknowledged the Arizona family faced a daunting task in raising that much money. But when the White House agreed last year to trade Bergdahl, who had been held for five years by the Taliban and Haqqani network, the family believes the price for their daughter went up.

“That made the whole situation worse,” Kayla Mueller’s brother, Eric, told the network. “Because that’s when the demands got greater. They got larger. They realized that they had something. They realized that, ‘Well, if they’re gonna let five people go for one person, why won’t they do this? Or why won’t they do that?’”