McCain Loses Palin and Convention Bounce

CNN’s poll of polls:

The bounce John McCain received in national opinion polls following his party’s convention and the selection of Sarah Palin to the GOP presidential ticket appears to have evaporated.

In the latest CNN survey of several recent national polls, Obama and McCain are locked in a dead heat at 45 percent each with 10 percent who remain undecided with 50 days remaining until Election Day.