I'm pretty sure this is headed to a runoff, and I'm also pretty sure Chambliss would win said runoff.
Georgia has run-offs?
Do any other states have similar laws?
I knew Louisiana used to have a jungle primary...but do they still have run-offs under the new system for federal offices if no candidate reaches 50%?
Louisiana still has the open primary for state elections, but it's switched to a traditional primary-primary runoff-general format for federal. I think Georgia and Louisiana are the only states still using runoffs in general elections.