Chris Cillizza looks ahead to this year's Senate races while Sarah Lovenheim looks back at what readers had to say about Hillary Clinton's account of her 1996 Bosnia trip. Cillizza moves two Republican-held seats up in his ranking of the 10 seats most likely to change hands. Sens. John Sununu (R-N.H.) and Ted Stevens (R-Alaska) face challenges that are getting tougher, while Sen. Mary Landrieu's (D-La.) Republican opponent has yet to show "real progress." Lovenheim highlights several posts from readers who see Clinton's misstatements about her trip as a "major blunder." They note that it under cuts her "experience" argument.