As is often the case when celebrity couples part company, there has been an enormous amount of press coverage concerning the Lance Armstrong/Sheryl Crow split. But the Star is reporting a possible political cause for the engagement halt. There's speculation that the root of the rift may have to do with President Bush. No, Crow doesn't have a crush on the prez. Quite the contrary. The singer has been public about her opposition to Bush's policies. Many of us have a less than fond remembrance of her highly visible, much discussed "War Is Not the Answer" T-shirt. Well, it turns...