Former Vice President Dick Cheney told ABC‘s Jonathan Karl Sunday that Senator John McCain’s decision to pick Sarah Palin as his running mate in 2008 was a “mistake,” and one that Mitt Romney can’t repeat. “I like Governor Palin. I’ve met her. I know her. She – attractive candidate. But based on her background, she’d only been governor for, what, two years. I don’t think she passed that test…of being ready to take over. And I think that was a mistake,” Cheney explained. But now, Liz Cheney– who many respect as a conservative mind independent of her father’s former position–...