A bit of this is probably name rec.
Edwards likely has a monopoly in the bayou parishes; once Graves gets more visible, that will probably change.
If I'm Claitor, I'd be trying to talk Lieberman out. With Edwards in, Lieberman becomes irrelevant anyway. He was also running as a "proud conservative" Democrat...most of his support would probably be split between Edwards and Claitor.
FWIW, the poll was only 17% black. The district is 23% overall and Edwards should help in turning them out.
'Just got a fundraising email from the Dietzel camp. This is the part they're touting, the reason why Dietzel wasn't tested in a runoff:
Fair enough. People around Baton Rouge should certainly recognize the Dietzel name though.