Question:
If 2010 election for U.S. Senate were held today for whom would you vote for if the choices were between Arlen Specter the Democrat and Pat Toomey the Republican?
ARLEN SPECTER PAT TOOMEY UNDECIDED
ALL 45 40 15

Question:
If 2010 election for U.S. Senate were held today for whom would you vote for if the choices were between Joe Sestak the Democrat and Pat Toomey the Republican?

JOE SESTAK PAT TOOMEY UNDECIDED
ALL 42 41 17

About this Poll
The Research 2000 Pennsylvania Poll was conducted from August 10 through August 12, 2009. A total of 600 likely voters who vote regularly in state elections were interviewed statewide by telephone. Those interviewed were selected by the random variation of the last four digits of telephone numbers. A cross-section of exchanges was utilized in order to ensure an accurate reflection of the state. Quotas were assigned to reflect the voter registration of distribution by county.

The margin for error, according to standards customarily used by statisticians, is no more than plus or minus 4% percentage points. This means that there is a 95 percent probability that the "true" figure would fall within that range if the entire population were sampled. The margin for error is higher for any subgroup, such as for gender or party affiliation. NOTE: There was an over sample conducted among Democratic primary voters totaling 400. The margin of error is 5%.