Public Policy Polling robo poll has John McCain leading Barack Obama in Florida, 50% to 45%: "Each candidate has expanded his share of the vote within his own party over the last month but there’s been a five-point shift in party identification toward the Republican side, perhaps because of momentum from a successful convention last week.

"Barack Obama has dropped a few points each time we’ve polled Florida over the course of the summer,” said Dean Debnam, president of Public Policy Polling. “Virginia and Colorado may end up as the states more critical to his Electoral College strategy this fall if the trend continues.”

"John McCain’s choice of Sarah Palin as his running mate appears to be a hit with Florida voters. 45% of respondents said it made them more likely to support McCain while just 36% said the choice of Joe Biden makes them more likely to choose Obama."