The New York Times writes that Sen. John Walsh, D-Mont., appears to have heavily borrowed from others' written work -- without attribution -- on his 2007 thesis at the United States War College.
Walsh is currently running against Rep. Steve Daines, R-Mont., in a closely watched Senate contest this year.
The Times writes: "Most strikingly, each of the six recommendations Mr. Walsh laid out at the conclusion of his 14-page paper … is taken nearly word-for-word without attribution from a Carnegie Endowment for International Peace document on the same topic."
When the Times asked Walsh if he plagiarized the thesis, he responded, “I don’t believe I did, no.”
More: "On Wednesday, a campaign aide for Mr. Walsh did not contest the plagiarism but suggested that it be viewed in the context of the senator’s long career. She said Mr. Walsh was going through a difficult period at the time he wrote the paper, noting that one of the members of his unit from Iraq had committed suicide in 2007, weeks before it was due."