A Casey Blowout in Pennsylvania

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CBS News exit polls give Bob Casey Jr. the win in Pennsylvania.
The networks are cautious about calling these races, so this means the spread is well above their margin of error.

The CBS poll indicates a Casey blowout. Though the exit poll, as currently published on the network's website, does not give the head-to-head numbers, you can look at the interior runups and see the following:

Casey is defeating Santorum in every area of the state - except for the Republican "T"
The exit poll indicates he will win Philadelphia 85%-14%, win the Philly suburbs 59-40 and win the Pittsburgh media market by 60-40.

Other highlights:
Casey has a huge lead among women voters: 59%-40%, among all income groups, among labor households. He is currently getting 71% of voters who identify themselves as independents.
The only sub-group Santorum can call his own is evangelicals, who favor the Republican in the CBS poll by a margin of 61%-39%.

Translated into votes, this poll indicated a Casey margin of over 500,000 votes.

However, keep in mind that no actual vote totals have been posted as of 8:43 p.m.