Chris Cillizza looks ahead to this year's Senate races while Sarah Lovenheim looks back at what readers had to say about Hillary ClintonHillary Diane Rodham ClintonGrassley blasts Democrats over unwillingness to probe Clinton GOP lawmakers cite new allegations of political bias in FBI Top intel Dem: Trump Jr. refused to answer questions about Trump Tower discussions with father MORE'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 LandrieuMary LandrieuProject Veritas at risk of losing fundraising license in New York, AG warns You want to recall John McCain? Good luck, it will be impossible CNN producer on new O'Keefe video: Voters are 'stupid,' Trump is 'crazy' MORE'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.