Chris Cillizza looks ahead to this year's Senate races while Sarah Lovenheim looks back at what readers had to say about Hillary ClintonHillary Rodham ClintonGOP vows to use Pelosi against Democrats in 2018 Schiff: Obama's delayed response to Russian interference 'a very serious mistake' Trump: Hillary Clinton colluded with Democrats to defeat Bernie Sanders 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 LandrieuMeet Mitch Landrieu, the 2020 dark-horse Dem Medicaid rollback looms for GOP senators in 2020 Five unanswered questions after Trump's upset victory 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.