CNN Poll: Toomey Leads By 4 Points In PA-SEN, Aided By Enthusiasm Gap

The new CNN poll of the Pennsylvania Senate race gives Republican Pat Toomey a narrow lead over Democrat Joe Sestak.

The numbers, among likely voters: Toomey 49%, Sestak 45%. The survey of likely voters has a ±3.5% margin of error. In the previous poll from a month ago, Toomey led by 49%-44%.

This poll also provides a further data point about how the enthusiasm gap is hurting Democrats. Among registered voters, a wider pool than the likely voters, Sestak actually leads by 47%-43%, up from a 45%-45% tie in the last poll.

The TPM Poll Average gives Toomey a lead of 46.1%-43.7%.