Check out my piece today on the Senate race in North Carolina, where Sen. Richard Burr (R) awaits a Democratic challenger. Polls and the current landscape within the state indicate Burr is vulnerable, but no Dems have stepped up as of yet.

By any number of metrics, North Carolina Sen. Richard Burr could be the most vulnerable Republican incumbent in the country. His once Republican-leaning state looks rather blue after the 2008 elections, and recent polls show Burr anything but safe.

Still, Burr is likeable -- nothing like his distant relative, Vice President Aaron Burr -- and he lacks the kind of issues that doomed former senator Elizabeth Dole's re-election bid last year. Perhaps most important to the first-term senator's survival prospects, though, is that no top-tier Democrat has stepped forward to challenge him.

You can read the rest here.