Thursday's Georgia Chamber of Commerce forum will be the first joint public appearance between Senate contenders David Perdue and Michelle Nunn. It will also be the Republican's first big trip to a major Chamber meeting since his public break with the national group.

In the heat of the Republican primary, Perdue walked out of a contentious endorsement meeting with the U.S. Chamber, and the two traded attacks in the closing days of the primary runoff. The national organization is separate from the Georgia offshoot, which is hosting Thursday's event and doesn't endorse candidates.

Two audio recordings from a late June event in Augusta documenting his angst with the national Chamber landed in our inbox this week, sent from a Nunn ally.

The first, which you'll find below, offers Perdue's take on why the Chamber backed Rep. Jack Kingston over him in the primary and last month's nasty runoff. He said his opposition to "amnesty" in an immigration overhaul the group supported was a poison pill, though the Chamber has said its 13-year path to citizenship is no such thing.

The second clip is Perdue's assertion that even if offered funding from the Chamber in the general election, "I am not going to take it." (The end is a little muffled.)

Given the well-documented turmoil between the two, we don't think that's something he'll have to worry about.

Here are the clips:

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