Not to mince words, the former Nebraska senator is an uninformed nitwit.
One could accurately apply the above statement to any member past, present, or future of the Senate by removing the phrase "former Nebraska" from it. In fact, it could be applied to any officeholder at any level of government -- a fact said officeholders would be well advised to humbly heed as they go about their daily business.
Oh, and BTW, I thought I remember that Hagel had lied about his service in Vietnam? Is that no longer an operative fact?