Sen. Richard BurrRichard Mauze BurrEx-CIA agent: Whistleblower's complaint 'should be considered on its merits' Senate Intel chair: Whistleblower hasn't agreed to testify before panel Juan Williams: Trump, the conspiracy theory president MORE (R-N.C.), who faces a reelection race in 2010, has small leads over two potential Democratic challengers, according to a new Research 2000/Daily Kos poll.

Burr leads Attorney General Roy Cooper 45 percent to 43 percent. Burr leads former state treasurer Richard Moore 46 percent to 40 percent. The poll's margin of error is 4 percentage points.

Democrats showed they can win state-wide races in North Carolina in 2008. Last year, President-elect Obama won the state's electoral votes, Sen. Kay HaganKay Ruthven HaganWarning signs flash for Tillis in North Carolina Tillis trails Democratic challenger by 7 points in North Carolina poll North Carolina businessman will challenge Tillis in GOP primary MORE (D) unseated Elizabeth Dole (R), Beverly Perdue captured the governor's mansion and Cooper won reelection as attorney general.