Washington, DC, Oct. 14 (UPI) -- A poll of likely Oklahoma voters released Thursday says Republican Tom Coburn is ahead by 5 points over Democrat Brad Carson in the race for U.S. Senate. Coburn, a former member of the U.S. House, took 46 percent in the survey while Carson, who holds the congressional seat Coburn once occupied, was at 41 percent. A third candidate, independent Sheila Bilyeu, polled 3 percent of the 500 likely voters surveyed. In a race in which cross-party voting will have an impact on the outcome, the Cole Hargrave Snodgrass and Associates Poll showed the Republican...