Interesting. Up until now, Republican media efforts in Georgia had yet to pound Jim Martin for his support of Barack Obama -- even as Martin casts himself as a strong Obama supporter in his own ads. That changed today, as Saxby is now shaking things up by "going there":
We saw in the special election in Mississippi's 1st that attacking Obama led to a surge in African-American enthusiasm for Democrat Travis Childers. The difference here is that Chambliss' ad is far less scurrilous (albeit still false) than the toxic waste that Greg Davis produced, and that Martin is running a campaign that seems entirely aimed at mobilizing Obama supporters to come out for a second time, rather than reaching out for crossover votes. We'll just have to see which side is more ginned up.