Pollster	Dates	N/Pop	Corbett	Onorato	Other	Undecided	Not Voting	Margin
PPP (D)	10/30-31/10	772 LV	52	45	-	3	-	+7R
Muhlenberg	10/28-31/10	474 LV	49	42	-	8	-	+7R
YouGov	10/28-31/10	570 LV	51	40	-	-	-	+11R
Quinnipiac	10/25-30/10	1244 LV	52	42	-	6	-	+10R
Rasmussen	10/28/10	750 LV	52	43	2	4	-	+9R
YouGov	10/25-28/10	779 LV	50	41	-	-	-	+9R
Muhlenberg	10/24-27/10	460 LV	52	37	-	11	-	+15R
Susquehanna	10/24-27/10	800 LV	48	47	9	-	-	+1R
CNN/Time	10/20-26/10	823 LV	52	45	1	2	-	+7R
Ipsos/Reuters	10/22-24/10	400 LV	49	43	-	8	-	+6R
Franklin and Marshall College	10/18-24/10	489 LV	51	35	-	11	-	+16R
Muhlenberg	10/20-23/10	436 LV	50	41	-	7	-	+9R
Rasmussen	10/21/10	750 LV	50	45	2	3	-	+5R
Muhlenberg	10/16-19/10	403 LV	47	40	-	14	-	+7R
PPP (D)	10/17-18/10	718 LV	48	46	-	6	-	+2R
Quinnipiac	10/13-17/10	1046 LV	49	44	1	6	-	+5R
Rasmussen	10/12/10	750 LV	54	40	1	5	-	+14R
Magellan (R)	10/10/10	1766 LV	48	38	3	11	-	+10R
Muhlenberg	9/28-10/4/10	577 LV	47	37	-	15	-	+10R
Rasmussen	9/30/10	750 LV	53	41	1	5	-	+12R
Marist/McClatchy	9/26-28/10	468 LV	53	41	1	5	-	+12R
Suffolk	9/24-27/10	500 RV	47	40	-	13	-	+7R
Franklin and Marshall College	9/20-26/10	436 LV	36	32	-	38	-	+4R
Muhlenberg	9/18-23/10	445 LV	46	37	-	17	-	+9R
Magellan (R)	9/21/10	1430 LV	50	38	3	9	-	+12R
CNN/Time	9/17-21/10	741 LV	52	44	3	2	-	+8R
Quinnipiac	9/15-19/10	684 LV	54	39	1	7	-	+15R
FOX	9/18/10	1000 LV	49	39	3	9	-	+10R
Critical Insights	9/14-16/10	600 LV	38	37	-	25	-	+1R
Rasmussen	9/13/10	750 LV	49	39	2	10	-	+10R
FOX	9/11/10	1000 LV	50	40	5	5	-	+10R
Rasmussen	8/30/10	750 LV	53	39	1	6	-	+14R
Ipsos/Reuters	8/28-29/10	407 LV	49	34	1	16	-	+15R
Franklin and Marshall College	8/16-23/10	377 LV	38	27	-	31	-	+11R
PPP (D)	8/14-16/10	585 LV	48	35	-	17	-	+13R
Rasmussen	7/28/10	750 LV	50	39	3	8	-	+11R
Rasmussen	7/14/10	750 LV	48	38	5	10	-	+10R
Quinnipiac	7/6-11/10	1367 RV	44	37	1	18	1	+7R
Rasmussen	6/29/10	500 LV	49	39	4	8	-	+10R
PPP (D)	6/19-21/10	934 LV	45	35	-	20	-	+10R
Rasmussen	6/2/10	500 LV	49	33	5	13	-	+16R
Rasmussen	5/19/10	500 LV	49	36	4	10	-	+13R
Quinnipiac	5/5-10/10	1161 RV	43	37	1	19	1	+6R
Rasmussen	4/15/10	500 LV	45	36	8	11	-	+9R
Muhlenberg	4/5-7/10	402 LV	42	18	-	40	-	+24R
Quinnipiac	3/31-4/5/10	1412 RV	45	33	1	21	1	+12R
PPP (D)	3/29-4/1/10	934 LV	45	32	-	23	-	+13R
Rasmussen	3/16/10	500 LV	46	29	7	17	-	+17R
Susquehanna	3/3-6/10	700 LV	39	24	2	35	-	+15R
Quinnipiac	2/22-28/10	1452 RV	42	32	1	24	1	+10R
Rasmussen	2/10/10	500 LV	52	26	5	17	-	+26R
Quinnipiac	12/8-14/09	1381 RV	45	30	1	22	1	+15R
Rasmussen	12/8/09	1200 LV	44	28	7	21	-	+16R
GrassrootsPA (R) / Dane (R)	10/7/09	204 LV	44	32	-	24	-	+12R
Quinnipiac	9/21-28/09	1100 RV	47	28	1	24	1	+19R
Susquehanna	5/26-30/09	700 RV	34	29	4	32	-	+5R