Poll	Date	Sample	Sanders	Biden	Buttigieg	Warren	Klobuchar	Steyer	Gabbard	Spread
PowerVoter Average	2/19 - 2/21	--	32.5	16.0	16.0	14.0	9.5	9.0	2.0	Sanders +16.5
Data for Progress (D)	2/19 - 2/21	1010 LV	35	16	15	16	8	8	2	Sanders +19
KLAS-TV/Emerson	2/19 - 2/20	425 LV	30	16	17	12	11	10	2	Sanders +13
Data for Progress (D)	2/12 - 2/15	766 LV	35	14	15	16	9	10	2	Sanders +19
Las Vegas Review-Journal	2/11 - 2/13	413 LV	25	18	10	13	10	11	--	Sanders +7
USA Today/Suffolk	1/8 - 1/11	500 LV	18	19	8	11	4	8	1	Biden +1
FOX News	1/5 - 1/8	635 LV	17	23	6	12	2	12	2	Biden +6
FOX News	11/10 - 11/13	627 RV	18	24	8	18	2	5	2	Biden +6
CBS News/YouGov	11/6 - 11/13	708 LV	23	33	9	21	2	2	0	Biden +10
Emerson	10/31 - 11/2	451 RV	19	30	5	22	1	3	1	Biden +8
Nevada Independent	10/28 - 11/2	600 LV	19	29	7	19	3	4	1	Biden +10
CNN	9/22 - 9/26	324 LV	22	22	4	18	1	4	1	Tie
USA Today/Suffolk	9/19 - 9/23	500 LV	14	23	3	19	0	3	1	Biden +4
CBS News/YouGov	8/28 - 9/4	LV	29	27	4	18	0	2	1	Sanders +2
Gravis	8/16 - 8/16	382 RV	10	25	5	15	2	6	2	Biden +10
Morning Consult	7/1 - 7/21	749 RV	23	29	6	12	1	1	0	Biden +6
Monmouth	6/6 - 6/11	370 LV	13	36	7	19	1	--	1	Biden +17
Emerson	3/28 - 3/30	310 RV	23	26	5	10	2	--	2	Biden +3
Point Blank Political	2/13 - 2/15	256 LV	13	14	13	7	16	19	2	Steyer +3
Beacon Research	2/12 - 2/15	600 LV	24	19	13	10	7	18		Sanders +5
Data for Progress	2/12 - 2/15	766 LV	35	14	15	16	9	10	2	Sanders +19
WPA Intelligence	2/11 - 2/13	413 LV	25	18	10	13	10	11	0	Sanders +7
USA Today/Suffolk	1/8 - 1/11	500 LV	18	19	8	11	4	8	1	Biden +2
Myers Research/Strategic Services	1/6 - 1/8	600 LV	29	28	6	14	4	8	1	Sanders +1
FOX News	1/5 - 1/8	635 LV	17	23	6	12	2	12	2	Biden +6
Final Results	--	--	34.0	17.6	15.4	12.8	9.6	9.1	0.3	Sanders +16.4

Source : www.realclearpolitics.com

From:

to:

32.5

Sanders

16.0

Biden

16.0

Buttigieg

14.0

Warren

9.5

Klobuchar

9.0

Steyer

2.0

Gabbard

O'Rourke

Harris

Booker

Yang

Castro