We have been monitoring the potential impact of the Republican convention on the presidential race on a day-by-day basis. So far, we don’t see an impact. We report a seven-day rolling average of registered voters each day, each of which is based on more than 3,000 interviews. This reporting period is a very purposeful decision on our part — even if a bit more “sluggish” than if we reported a three- or four-day average. The longer average dampens down short-term changes, and puts more of an emphasis on sustained changes.
The seven-day average has been at 47% Obama, 46% Romney for the last five days. As a matter of fact, both Obama and Romney for the most part have been at or around 46% since we began tracking in April. The latest Gallup average covers Aug. 26-Sept. 1, or Sunday through Saturday. That for the most part covers the GOP convention, albeit with only two days of polling completely after Thursday’s climactic events, including Mitt Romney’s speech, and actor Clint Eastwood’s appearance.