CONCORD – Democratic Senate candidate Jeanne Shaheen's once imposing lead over U.S. Sen. John E. Sununu has all but vanished in recent months according to a University of New Hampshire Survey Center poll released today. Shaheen leads Sununu in this poll of likely voters, 46 percent to 42 percent, but the spread is within its margin of error of plus or minus 4.5 percent. Pollster Andrew Smith stressed the race remains wide open since only 22 percent said they had definitely decided upon a candidate. During a telephone interview, Smith said voters are starting to focus more on the choices...