Rachel Maddow and Michael Isikoff debunk Liz Cheney's earlier appearance with Andrea Mitchell on MSNBC. Rachel says she's trying to get either of the Cheney's to come on her show but they won't do it. I bet Rachel wouldn't have to go back and do her "homework" to bebunk either Cheney. She'd have done it before they came on with her. You know...like you'd expect from a journalist.