John Edward Walsh (born November 3, 1960) is an American politician who served as the junior United States senator from Montana from 2014 to 2015.
A member of the Democratic Party, he previously served as a colonel in the Army National Guard, the adjutant general of the Montana National Guard with a state commission as a brigadier general from 2008 to 2012 and the 34th Lieutenant Governor of Montana from 2013 to 2014 under Governor Steve Bullock.In October 2013, Walsh announced his candidacy for the U.S.
Senate in 2014 to succeed retiring Democratic incumbent Max Baucus.
When Baucus retired prior to the end of his term, Walsh was appointed to fill Baucus' seat, and thus Walsh was running as an incumbent in 2014.
On August 7, 2014, he announced that he was dropping out of the race, a decision attributed to the controversy arising from allegations made in The New York Times that he had plagiarized portions of a 2007 research paper he had written while at the Army War College.
The allegations led to an investigation that resulted in the revocation of Walsh's Master's degree in 2014.In February 2016 Walsh joined the United States Department of Agriculture as state director of Montana's USDA Rural Development office.
He resigned following the end of the Obama administration in 2017, and was replaced by Charles Robison, the former chief of staff for Congressman Greg Gianforte.