Public Policy Polling (8/4-10, registered voters, 7/10-12 in parens, March in parens for Marshall trend lines):
Cal Cunninghan (D): 28 (31)
Richard Burr (R-inc): 43 (40)
Kenneth Lewis (D): 27 (31)
Richard Burr (R-inc): 43 (42)
Elaine Marshall (D): 31 (35)
Richard Burr (R-inc): 43 (43)
Kevin Foy (D): 27
Richard Burr (R-inc): 43
(MoE: ±3.6%)
Burr has got to be pleased that he's expanding his lead against all comers, and even against the highly-vaunted candidacy of Generic Democrat, whom Burr now leads by 42-35, a distinct improvement from 40-38 last month. However, Burr still doesn't have much to brag about, as his approval rating is a marginal 38-32, with a big 30% slice of electorate being "not sure". Possible newcomer Kevin Foy, the mayor of Chapel Hill, isn't bringing any noticeable strength to the table in his first appearance in PPP's polling.
Tom Jensen gives his two cents:
Burr's situation is pretty simple. If things continue to move in a Republican direction all the way to November 2010 none of the Democratic candidates are going to be strong enough to defeat him. But if the economy turns around and Barack Obama gets the credit for it, resulting in another Democratic year, Burr is probably not strong enough to get reelected. As a relatively anonymous Senator his fate is more than likely going to be determined by which way the wind is blowing. Unless it turns out to be a year where disgusted voters just turn out incumbents of both parties at a much higher rate than usual.
I find it hard to disagree.
http://www.swingstateproject.com/diary/5415/ncsen-burr-ticks-upward