Tonight, Dateline NBC journalist Chris Hansen promotes his continuing segment on the show and his new book, To Catch a Predator.Jon begins the show with the constitutional showdown over whether Karl Rove will testify about the firing of the eight U.S. attorney's. Jon then looks at Bush's response to the scandal and the "reasonable proposal" he made to have Karl Rove testify, in private and not under oath. John Oliver, Senior Washington Correspondent talks about this proposal with Jon in a segment called "Eight Men Out". Finally, a recap of the John Bolton interview from last night's episode and Bolton's continuing assertion that Jon is wrong. Jon talks about a specific point he made about Abraham Lincoln in last night's interview with Doris Kearns Goodwin (an expert who wrote a book on Lincoln) and how Bolton was in fact, the one who was wrong.