It is no secret that the Boston Herald’s Howie Carr is one of the more conservative columnists in town. But as Carr covers the US Senate race between Democratic incumbent Elizabeth Warren and her Republican challenger, Geoff Diehl, he is pushing the boundaries of just how cozy a commentator and a candidate should be.

On this week’s edition of Beat the Press, Adam Reilly was joined by Dan Kennedy of Northeastern University, Callie Crossley of WGBH News, Lylah Alphonse of U.S. News and World Report, and Tom Fiedler of Boston University.