1918 United States Senate election in Montana

1918 United States Senate election in Montana
	County results
U.S. senator before election; Thomas J. Walsh; Democratic	Elected U.S. Senator ; Thomas J. Walsh; Democratic

The 1918 United States Senate election in Montana took place on November 5, 1918. Incumbent United States Senator

United States representatives from Montana's at-large congressional district and the nominee of the National Party

Democratic primary

Democratic Party primary results^[1]
Party		Candidate	Votes	%
	Democratic	Thomas J. Walsh (incumbent)	28,553	100.00%
Total votes			28,553	100.00%

Oscar M. Lanstrum, former State Representative
Jeannette Rankin, one of two Congressional representatives from Montana's at-large congressional district
Harry H. Parsons, attorney
Edmund Nichols

Republican Primary results^[1]
Party		Candidate	Votes	%
	Republican	Oscar M. Lanstrum	18,805	41.59%
	Republican	Jeannette Rankin	17,091	37.80%
	Republican	Harry H. Parsons	5,878	13.00%
	Republican	Edmund Nichols	3,443	7.61%
Total votes			45,217	100.00%

1918 United States Senate election in Montana^[2]
Party		Candidate	Votes	%	±%
	Democratic	Thomas J. Walsh (incumbent)	46,160	41.07%	-0.10%
	Republican	Oscar M. Lanstrum	40,229	35.79%	+9.06%
	National	Jeannette Rankin	26,013	23.14%
Majority			5,931	5.28%	-3.79%
Turnout			112,402
	Democratic hold		Swing

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