Karl's Book, Courage and Consequence available at Amazon.com, Barnes & Nobles, and Books-a-Million
Methodology
For each state, the map uses the average of all public telephone polls (internet polls are not included in the average) taken within 30 days of the most recent poll available in each state. For example, if the most recent poll in Ohio was taken on July 1, the average includes all polls conducted between June 1 and July 1. States within a three-point lead for the Republican or Democratic candidate are classified as toss-ups; states outside the three-point lead are allocated to the respective party. For states where primaries have yet to occur, the map uses polling match-ups between the candidates leading in polls among each party's primary voters.
Election 2010: State of the Race
Another light week of polling over the long holiday weekend means only one change to the Senate map. Pennsylvania moves from toss-up to lean GOP as new polls show Pat Toomey (R) pulling ahead of Joe Sestak (D). This marks the third consecutive week Republicans have gained a seat, putting them up to 45, with Democrats steady at 49 seats, and 6 seats still classified as toss-ups.
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