The U.S. Senate race in Virginia could not be any tighter, a poll released Thursday night shows.
According to the latest NBC News/Wall Street Journal/Marist University poll, former Republican Sen. George Allen and ex-Democratic Gov. Tim Kaine are locked in a true dead heat, with each earning the support of 46 percent of likely voters in the Commonwealth
Widely viewed as perhaps the most competitive race in the country, the contest between Allen and Kaine could ultimately be tied to the outcome of the presidential campaign in Virginia. If that's the case, the Kaine camp will draw encouragement from the other side of Thursday's poll, which shows President Barack Obama holding a 5-point edge over Mitt Romney in Virginia.
The PollTracker Average currently shows the Virginia senate race as a tossup, with Allen holding a narrow lead over Kaine, 47 percent to 45.5 percent.