(CNN) – The match-up between Sens. Barack Obama and John McCain is tightening, according to CNN’s latest poll of polls.
Obama now leads McCain by four percentage points – 47 percent to 43 percent - with 10 percent undecided about their choice for president. Since the previous CNN poll of polls released Wednesday, Obama has dropped two percentage points – from 49 percent percent previously to his current support level of 47 percent – while McCain’s support remains steady at 43 percent since Wednesday.
“While there are indications that McCain may be closing in on Obama, we’ve seen these sorts of fluctuations in the polling average before,” cautioned CNN Senior Political Researcher Alan Silverleib. “McCain has not broken out of the low to mid-40s all summer. He has to hope that the combination of the Palin pick and a well-received acceptance speech tonight will somehow change the race’s fundamental dynamics, which so far continue to favor the Democrats.”
CNN’s August 29-September 3 national general election poll of polls consists of the following five surveys: CBS (September 1-3), Gallup (September 1-3), Diageo/Hotline (August 29-31), American Research Group (August 30-September 1), and CNN/Opinion Research Corp. (August 29-31). The poll of polls does not have a sampling error.