Dick Cheney has some advice for Mitt Romney on choosing a running mate: Don't pick another Sarah Palin. In his first interview since receiving a heart transplant in March, Cheney told ABC News, that John McCain's decision to pick Palin as his running mate in 2008 was "a mistake" - one that it is important from Romney not to repeat. It's subject on which Cheney has some unique experience. He helped Presidents Gerald Ford and George W. Bush lead their vice presidential searches and, of course, served as vice president for eight years. He's also privately offered some advice to...