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  CO Senate 01 - History
State Senate DETAILS
Parents > United States > Colorado > CO State Senate > CO Senate 01   Raw Vote Total:

Percentages:
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Established January 06, 1965
Disbanded Still Active
Last ModifiedBrentinCO February 27, 2021 12:34pm
DescriptionSeries A Election Cycle

State Senate District established for the session beginning Jan 6, 1965 at the opening of the 45th session of the Colorado General Assembly.

RACES [Don't Show Primaries]
Redistricting: Light Green=Added Territory, Red=Removed Territory,
Dark Green=Kept Territory
Date Type Results
Nov 03, 2026 General Election
  Democratic Primary Winner
0
0.00% 		  Republican Primary Winner
0
0.00%
Jun 30, 2026 Primary Election
 Byron H. Pelton(I)
0
0.00%
Nov 08, 2022 General Election
 Byron H. Pelton
53,199
100.00%
Jun 28, 2022 Primary Election
 Byron H. Pelton
23,392
100.00%
Date Type Results
Nov 06, 2018 General Election
 Jerry Sonnenberg(I)
52,311
79.01% 		 Debra Gustafson
13,894
20.99%
Jun 26, 2018 Primary Election
 Debra Gustafson
5,523
100.00%
Jun 26, 2018 Primary Election
 Jerry Sonnenberg(I)
23,879
100.00%
Nov 04, 2014 General Election
 Jerry Sonnenberg
44,700
85.44% 		 Doug Aden
7,618
14.56%
Date Type Results
Nov 02, 2010 General Election
 Greg Brophy(I)
34,632
77.46% 		 Michael Bowman
10,080
22.54%
Aug 10, 2010 Primary Election
 Greg Brophy(I)
16,577
100.00%
Aug 10, 2010 Primary Election
 Michael Bowman
4,217
100.00%
Nov 07, 2006 General Election
 Greg Brophy(I)
29,505
71.38% 		 James L. Bowen
11,833
28.62%
Aug 08, 2006 Primary Election
 Greg Brophy
9,707
100.00%
Aug 08, 2006 Primary Election
 James L. Bowen
1,970
100.00%
Jun 19, 2005 Appointment
 Greg Brophy
1
100.00%
Nov 05, 2002 General Election
 Mark D. Hillman(I)
30,112
73.43% 		 Mark Benner
9,941
24.24% 		 Jayne Bass
956
2.33%
Date Type Results
Nov 03, 1998 General Election
 Marilyn Musgrave
22,873
62.66% 		 Sue Jarrett
13,631
37.34%
Aug 11, 1998 Primary Election
 Marilyn Musgrave
5,479
57.19% 		 Clair B. Orr
4,101
42.81%
Aug 11, 1998 Primary Election
 Sue Jarrett
2,665
99.33% 		  Write-In (W)
18
0.67%
Nov 08, 1994 General Election
 Donald Douglas “Don” Ament(I)
28,125
100.00%
No Map In System
Date Type Results
Nov 06, 1990 General Election
 Donald Douglas “Don” Ament
19,920
71.05% 		 Viola Johnson
8,117
28.95%
Nov 04, 1986 General Election
 James L. "Jim" Brandon(I)
17,241
56.04% 		 James P. “Jim” Brophy
13,523
43.96%
Nov 02, 1982 General Election
 James L. "Jim" Brandon
16,976
55.27% 		 Melba Hastings
13,738
44.73%
Sep 14, 1982 Primary Election
 James L. "Jim" Brandon
6,025
84.67% 		 Keith L. Gay
1,091
15.33%
Nov 07, 1978 General Election
 Dennis Gallagher(I)
11,665
77.59% 		 Ray Fenster
3,369
22.41%
Nov 03, 1974 General Election
 Dennis Gallagher
14,114
74.18% 		 George Burke
4,912
25.82%
Jan 03, 1973 Appointment
 Joseph V. Calabrese(I)
1
50.00% 		 Ben Klein(I)
1
50.00%
Nov 03, 1970 General Election
 Ben Klein
8,350
57.97% 		 David Shortridge
6,053
42.03%
Sep 08, 1970 Primary Election
 David Shortridge
1,132
100.00%
Sep 08, 1970 Primary Election
 Ben Klein
3,225
61.38% 		 Allegra J. Saunders(I)
2,029
38.62%
Jan 06, 1965 Appointment
 Roland L. "Sonny" Mapelli(I)
1
100.00%

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