With Joe Sestak’s victory in the Democratic primary and the poll bump that came with it now three months in the rear view mirror, Pat Toomey has taken a 45-36 lead in the Pennsylvania Senate race. That’s a big change from the tie PPP saw in a June survey of the race but pretty similar to the solid Toomey lead our April survey showed.

Toomey’s winning for the same reasons most Republican candidates across the country are doing well in key races right now:

-He has a 50-23 lead with independent voters.

-He’s benefiting from a much more unified party, as he leads 74-9 with Republicans while Sestak is currently up only 64-15 with Democrats.

-This is our first poll of the race explicitly surveying likely voters and given the considerably greater enthusiasm on the Republican side we’re seeing an electorate in the state that voted for John McCain by a point in 2008, in contrast to Barack Obama’s actual 10 point victory in the state. To read the full article click here.