The Weekly Standard on democrat-leaning PPP's latest poll of North Carolina:
The latest PPP polling in North Carolina, the swing-state where the Democrats are holding their 2012 convention, shows Rick Santorum faring slightly better than Mitt Romney versus President Obama. The poll shows Santorum and Obama tied at 46 percent apiece in a hypothetical general election matchup, while Romney trails Obama by one percentage point — 46 to 45 percent.
... In truth, North Carolina is a state that the Republican nominee would likely have to win — and perhaps relatively handily — in order to win the presidency. Obama won nationwide by 7.3 points last time, but his winning margin in North Carolina was only 0.3. Evidence that Romney is trailing there doesn’t help strengthen his electability argument heading into the crucial GOP primary in neighboring South Carolina.