Ted Cruz has inched ahead of Donald Trump among Republican voters nationally, according to the latest NBC News/Wall Street Journal poll. In the survey — which contrasts sharply with other national polls — Cruz draws 28 percent, narrowly leading Trump at 26 percent. Trailing behind are Marco Rubio at 17 percent, John Kasich at 11 percent, Ben Carson at 10 percent and Jeb Bush at 4 percent. The poll, taken after Trump's New Hampshire primary win and after a raucous GOP debate in which he bitterly criticized former President George W. Bush, diverged sharply from last month's NBC/WSJ survey in which Trump led Cruz by 33 percent to 20 percent. It also diverges from other recent national polls showing Trump maintaining a robust lead.



Republican presidential candidates (L-R) Ohio Governor John Kasich, Jeb Bush, Sen. Ted Cruz (R-TX), Donald Trump, Sen. Marco Rubio (R-FL) and Ben Carson stand on stage during a CBS News GOP Debate February 13, 2016 at the Peace Center in Greenville, South Carolina. Spencer Platt | Getty Images

Republican pollster Bill McInturff, who conducts the NBC/WSJ poll with Democratic counterpart Peter Hart, cautioned that it's too early to say the results signal a definitive shift in the race. "When you see a number this different, it means you might be right on top of a shift in the campaign," McInturff said. "What you don't know yet is if the change is going to take place or if it is a momentary 'pause' before the numbers snap back into place." As for whether the survey shows Republicans pulling away from the billionaire businessman after his accusations that President Bush had lied before the Iraq War and failed to keep America safe, McInturff added, "One poll post-Saturday debate can only reflect there may have been a 'pause' as Republican voters take another look at Trump. This happened earlier this summer and he bounced back stronger. We will have to wait this time and see what voters decide." Republican strategists opposed to Trump have held out hope that a "ceiling" on his potential support might allow a rival to best him for the nomination once the Republican field thins. The NBC/WSJ poll provides some encouragement for them: just 56 percent of Republicans say they can envision supporting him, down from 65 percent in January. By contrast, 70 percent say they can envision supporting Rubio, and 65 percent say they can envision supporting Cruz.