Maryland: O'Malley Can't Shake Ehrlich

	Ehrlich (R)	O’Malley (D)	Date	Methodology	MofE
Mason-Dixon	43%	47%	Sept. 22-26	Phone, 625 LV	4.0
SurveyUSA	44%	51%	Sept. 17-19	Phone, 522 LV	4.4
Potomac Inc.	44%	50%	Sept. 15-18	Phone, 815 LV	3.5
Rasmussen Reports	42%	49%	Sept. 13	Phone, 500 LV	4.5
Gonzales Research	42%	46%	Aug. 9	Phone, 843 RV	3.5
Rasmussen Reports	43%	50%	Aug. 9	Phone, 500 LV	4.5
Potomac Inc.	38%	46%	Jul. 6-10	Phone, 1,200 LV	2.8