A poll from Gravis Marketing and Capitol Correspondent released on Tuesday gives Republican Mitt Romney a five-point lead over Democrat Barack Obama in the Virginia presidential race, and also gives GOP Senate candidate George Allen a five-point lead over Democrat Tim Kaine. The poll differs significantly from recent polling in both races that had consistently given Obama a small lead over Romney for president and had the Kaine-Allen race a virtual deadlock. Gravis Marketing, in a press release on its poll, reported that it had polled Virginia in August and had measured a 44 percent-to-40 percent lead for Obama in...