In this Feb. 11, 2014, file photo, Sen. John Walsh, D-Mont., right, and his son Michael leave the Old Senate Chamber on Capitol Hill in Washington. (AP Photo/Lauren Victoria Burke, File)

The U.S. Army War College has revoked the master's degree Sen. John Walsh (D-Mont.) earned there after reviewing evidence he plagiarized a research paper.

Army War College spokeswoman Carol Kerr said that after reviewing Walsh's paper, an academic board found him guilty of plagiarism and rescinded his degree. The college notified Walsh on Friday.

In a statement, Walsh said he disagreed with the decision but was prepared to live with it.

"I apologize to all Montanans for the plagiarism in my 2007 paper, and I am prepared to live with its consequences," said Walsh. "I may not be a scholar but I am proud to have been a soldier who has served Montana and this great nation for 33 years in uniform."

The New York Times reported in July that Walsh lifted major parts of his 2007 paper from other sources. Walsh, who was appointed to the Senate in February, ended his campaign for a full term shortly after the story was published.

"As Montanans choose their next U.S. Senator over the next few weeks, I will continue proudly serving this state through the end of this term. I look forward to fighting for veterans and their families," Walsh added.